CBSE Board Exam Time Table for Class 10 and 12 | CBSE Date Sheet 2021


CBSE Date Sheet 2021 | Class 10 and 12 Board Exam Time Table 2021 

CBSE Class X and XII Exam Schedule - image
Central Board of Secondary Education (CBSE) has released schedule (Date Sheet) for Class X and Class XII Board Exams 2021.

The complete schedules of Class 10 and Class 12 Board Exams are now available on the CBSE official website To check the complete CBSE 2021 date sheet (subject wise Exam Time Table) and other important notifications, simply click on the relevant link provided below which will take you to the CBSE official window:

CBSE Class 10th Board Examination 2021 Date Sheet (Complete Board Exam schedule for all subjects - SECONDARY SCHOOL EXAMINATION 2021)

CBSE 2021 Class 12th Board Examination Date Sheet (Exam date & timing of CBSE 12th Board Exam 2021 for all subjects - SENIOR SCHOOL CERTIFICATE EXAMINATION 2021)

Alternatively, you can manually check the same at

  • Go to the official website
  • Click on the link, 'CBSE Date Sheet Class 10, Class 12'
  • After clicking the same, the date sheet will be displayed on the screen
  • Take a printout for future use

Recommended for Class 11, 12 students

Are you prepared for JEE 2021, NEET 2021 ? Start preparing with India Study Solution FREE Online Test Series to boost your confidence. Click here

CBSE Date Sheet is very important as it is required to make preparation-planning for the last few days before beginning of the examination. It is said that once the planning is done, 70 percent work is done. March ahead sincerely with proper planning, the results will automatically come. Only ‘hard labour’ is not enough until it is a ‘skilled labour’. Date Sheet helps in making a ‘Plan’ ahead, and planning is important for ‘Time Management’.

With Precious Study Materials and Best Wishes as always ..

from CBSE Guide NCERT Solution ( for our beloved subscribers ...

Thank you for your precious time .. Please subscribe us (it’s free) if you haven’t done yet, for the best study materials from Class 7-12 (FREE) and keep you updated with the latest CBSE News related to you .. just one click away anytime free of cost ...  


CBSE Datesheet 2021 for Class 10, 12 Board Exams to be announced on 31st


CBSE Class 10 and Class 12 Board Exam 2021 latest updates:

CBSE Class 10 and Class 12 Board Exam 2021 latest updates

The dates for the Central Board of Secondary Education (CBSE) board exams will be announced on December 31, Education Minister Ramesh Pokhriyal Nishank tweeted on Saturday.

"Major announcements for students and parents! I will announce the date when the exams will commence for students appearing for CBSE board exams in 2021. Stay tuned," he tweeted.

The education ministry also tweeted the information.

Earlier in this month CBSE had denied a number of media reports that claimed the CBSE Board Exam 2021 will be held in March and students need to get ready. Some posts the second week of this month in social media platforms went viral claimed spreading fake news that the CBSE 2021 Board Exam dates of Class 10 and Class 12 examinations including the CBSE datesheet 2021 for practical exams were out and it created panic among the students and parents.

Read: CBSE Class 10 and 12 Board Exams 2021 - Do not panic on false reports, no datesheet decided yet

Then our education minister, in a virtual address to teachers, had said that the board exams will be conducted after February next year.

"The practical exams are usually held between January 1 and 15 while the exams are conducted between February 15 and mid-March. However, taking into account the present situation (the coronavirus pandemic), it is impossible to conduct the exams till the end of February. We will make a final decision on the exam dates as to when will the exams can be held after February," he had said.

The minister had also said that for students who can't attend schools amid the pandemic for lab work, alternatives would be found.

The CBSE had earlier this month announced that the board exams in 2021 will be conducted in written mode and not online.

With Genuine Reliable Reports and Best Wishes as always from CBSE Guide NCERT Solution ( for our readers / subscribers ..

Thank you for your precious time .. Please subscribe us (it’s free) if you haven’t yet, for the best study materials from Class 7-12 just one click away anytime free of cost ...  

(Source: NDTV - edited)

Evolution (Biology): Solved CBSE Questions from previous Class 12 Board Exams


Class12 Biology : CbseNcertSolution.Com

(Questions taken from previous CBSE Class XII Board Exams)

SECTION-A (1 Mark Question)

Question: Identify the examples of homologous structures from the following -

(i) Vertebrate hearts.

(ii) Thorns in Bougainvillea and tendrils of Cucurbita.

(iii) Food storage organs in sweet potato and potato.


(i) Vertebrate hearts,

(ii) Thorns in Bougainvillaea and tendrils of Cucurbita.

SECTION-B (2 Marks Question)

Question: How do Darwin's finches illustrate adaptive radiation?

Answer: Darwin during his journey to Galapagos Islands observed that there were many varieties of small black birds later called Darwin's finches.

All the varieties he conjectured, evolved on the island itself.

From the original seed-eating features, many other forms with altered beaks arose, enabling them to become insectivorous and vegetarian finches.

This process of evolution of different species in a given geographical area starting from a point and literally radiating to other areas of geography (habitats) is called adaptive radiation.

SECTION-C (3 Marks Question)

Question: (a) How does the Hardy-Weinberg's expression (p2+2pq+ q2=1) explain that genetic equilibrium is maintained in a population? (b) List any two factors that can disturb the genetic equilibrium.


(a) Gene frequencies in a population are stable, constant from generation to generation, until some change in frequency happens, due to some factor.

(b) Gene migration/gene flow/gene drift/mutation/genetic recombination/natural selection.

Question: Comment on the similarity between the wing of a cockroach and wing of a bird. What do you infer from the above, with reference to evolution?

Answer: They are similar in function. Thus, we infer that these organs are analogous which has resulted in convergent evolution.

Question: How does industrial melanism support Darwin's theory of Natural Selection? Explain.

Answer: Before industrial revolution the environment was unpolluted. The lichens on the barks of trees were pale. The white-winged moths could easily camouflage, while the dark-winged were spotted out by the birds for food. Hence, they could not survive. After industrial revolution the lichens became dark (due to soot deposit).

This favored the dark-winged moths while the white-winged were picked by birds. The population of the former which was naturally selected increased.

SECTION-D (5 Marks Question)

Question: Explain the salient features of Hugo De Vries of mutation. How is Darwin's theory of natural selection different from it? Explain.

Answer: Hugo de Vries based his work on evening primrose, brought forth the idea of mutations-differences arising suddenly in a population. He believed large single step mutation called salutation, caused speciation.

Darwin's theory:

(i) Directional

(ii) Gradual / slow.

(iii) Continuous variation.

Hugo De Vries's theory:

(i) Directionless.

(ii) Sudden.

(iii) Random.

Question: (a) Name the primates that lived about 15 million years ago. List their characteristics features.

(b) (i) Where was the first man-like animal found? (ii) Write the order in which Neanderthals, Homo habilis and Homo erectus appeared on earth. State the brain capacity of each one of them. (iii) When did modern Homo sapiens appear on this planet?


(a) Dryopithecus & Ramapithecus.

Dryopithecus is ape like and hairy, walked like Gorillas and Chimpanzees

Ramapithecus is more man like.


(i) Ethiopia/Tanzania/Eastern Africa. (ii) Order of appearance: Homo habilis, Homo erectus, Neanderthals. Cranial capacity: Homo habilis = 650 - 800 cc, Homo erectus = 900 cc, Neanderthals = 1400 cc. (iii) Modern Homo sapiens appeared on this planet during ice age i.e. 75000 - 10000 yrs ago.

Related Study Materials (Must Read)

Genetics and Evolution: Questions Bank with Answers - Short, Long and Very Long Questions

Class 9, Political Science Chapter 2, CBSE Guide - Additional Sample Questions Answers, NCERT Solution

 What is Democracy? Why Democracy?

Class 9 Political Science (Civics) Chapter 2, CBSE Additional Sample Questions Answers

CBSE Guide NCERT Solution

Question: “It is the rule of the people, for the people and by the people”. Who told this for democracy?

Answer: Abraham Lincoln.

Question: From where the word ‘Democracy’ has been derived?

Answer: Democracy has been derived from the Greek word ‘Democrati’. In Greek ‘Demos’ means people and ‘Krati’ means rule. So, democracy is the rule by the people. 

Question: Name three democratic countries of the world.

 Answer: India, USA and England.

Question: Name three non-democratic countries of the world.

Answer: Myanmar, Bhutan and Syria.

Question: Name three different countries where only ruling parties are allowed to contest elections.

Answer: Syria, China and Mexico.

For NCERT Solutions of Chapter Exercise questions click link below –

Democratic Politics - I (Class IX, Political Science) | Chapter-2, ‘What is democracy ? Why democracy ?’

Question: Why do we prefer democracy than any other form of government?

Answer: There are many arguments for why democracy is preferred than any other form of government. However the main arguments in favour of democracy are the following:

  1. Democracy is better than any other form of government because it represents the needs of the people. It does not depend on the whims of the ruler or the dictator. Hence, democracy is for the people and a democratic government is always accountable to the people.
  2. Democracy is based on discussion and consultation which enables it to take the most suitable decision as also correct the mistakes.
  3. Democracy provides peaceful solution to every problem. It suits the needs of many countries like India having diversity of languages, religions and cultures. Democracy in India has made it possible to keep unity in diversity and thus, provide a peaceful society.
  4. In democracy no one is a permanent winner or permanent loser. It is based on political equality which ensures equal rights for both, the rich and the poor, the educated and uneducated. Thus in a way democracy enhances the dignity of the citizen.
  5. It is only in democracy that mistakes are admitted and also it allows us to correct its own mistakes.

It is because of all these and many other reasons that democracy is considered the best form of government and so, we prefer democracy than any other form of government.     

Question: Write down some common features of democratic government.

Answer: Some common features of democratic government are as follows:

  • In democratic countries, rulers are elected by the people who take all the major decisions.
  • In democratic countries, there are free and fair elections. Elections offer a choice and fair opportunity to the people to change the current rulers.
  • In a democratic country, the opposition parties are allowed to function freely before and after the elections.
  • In democratic countries, there is a freedom of expression and people enjoy their fundamental rights.
  • Such governments are based on fundamental principles of political equality. In a democratic country each adult citizen has one vote and each vote has one value. Any citizen can aspire to contest elections for any post irrespective of his or her caste, religion, socio-economic and educational backgrounds.
  • In democratic countries, there is a ‘rule of law’ because of which a democratic government rules within the limits set by the country’s constitutional law and citizen’s rights.    


CBSE Class 10 and 12 Board Exams 2021: Do not panic on false reports, no datesheet decided yet


CBSE Board Exam 2021 latest updates on 27-Dec-2020:  

Expressing its concern over some false news, information, reports circulating in social media, some web sites and news papers, the Central Board of Secondary Education (CBSE) has issued a statement vide Public Notice No. CBSE/CE/SPS/2020 dated 10-Dec-20 in which the Board said that all such reports are false, no date or month for taking Class X and XII Board Examinations have been decided till now. Whatsoever decision would be taken, that will only be taken after consultation with all the stakeholders, student bodies, parents associations and academic authorities.

Recently there were a number of media reports claimed that the CBSE Board Exam 2021 will be held in March and students need to get ready. Some posts in social media platforms went viral claimed that the CBSE 2021 Board Exam dates of Class 10 and Class 12 examinations including the CBSE datesheet 2021 for practical exams are out and it created panic among the students and parents.

However, there is no need to panic as nothing in this regard has been decided yet. CBSE is well aware about the condition of the students and parents in the time pandemic and lockdown due to Covid and whatsoever decision it takes will be communicated at the CBSE official website and you will also get information on this site at right time.   

With Genuine Reliable Reports and Best Wishes as always from CBSE Guide NCERT Solution ( for our readers/subscribers now particularly for 2021 Class 10 and Class 12 examinees ..

Thank you, visit again or Subscribe us (it’s free) for best study materials from Class 7-12 just one click away anytime free of cost ...  


Unlock-4 SOP Guidelines: Partial reopening of schools for Class 9-12 students


CBSE Guide NCERT Solution : CBSE News
The Union Ministry of Health and Family Welfare announced reopening the schools partially or in the areas outside the containment zones from September 21 so that the face-to face method of learning can be restored. In this regard yesterday on 8th Sept, 2020 the ministry has issued a set of guidelines for holding these classes.

(An outline of India's new education policy NEP 2020 - bckground, aims and obectives, various changes, reforms and recommendations under new education rules)

The Standard Operating Procedures (SOP) follow the centre’s Unlock-4 guidelines to allow schools to reopen in areas outside containment zones which will serve as a guide to schools on the safety measures they need to take during the ongoing COVID-19 pandemic.

Various preventive measures that have to be followed to reduce the risk of Corona Virus in general, include simple public health safety steps to be observed by all (teachers, non-teaching staffs, students) all the time in these places.

The SOP includes social distancing guidelines including the use of face masks, maintaining six feet distance between students, following respiratory etiquettes, installation of Aarogya Setu application “wherever feasible” and prohibition of spitting. However, the guidelines also mentioned that online and distance learning shall continue to be in operation and is encouraged.

In order to check out the complete official SOP guidelines please click on Official SOP guidelines for partial reopening of Schools for students of 9th-12th classes issued by Health Ministry taking guidance from their teachers in the context of #COVID19.

Recent Articles on CBSE News 

CBSE received SC notice regarding Class 10, 12 Compartmental or Reappear Exam 2020


The Supreme Court yesterday issued a notice to CBSE (Central Board of Secondary Education) on petitions filed by Class 10 and 12 students, who are seeking cancellation of compartmental exams (reappear exams), scheduled to be held later in this month for those who have failed or are seeking improvement in subjects they appeared.

A three-judge bench headed by Justice AM Khanwilkar issued the notice on the petitions filed by students led by Anika Samvedi. Close to 1.5 lakh students of Class 10 and around 87,000 students of Class 12 are supposed to appear in these exams. The petitioners had filed a representation before the CBSE to cancel the compartmental exams, but it was rejected on August 6.

According to the details shared by the court officials, the petition filed by CBSE students cites that holding Compartmental Exams 2020 for Class 10 and Class 12 students would be detrimental to the health of the students. The petition has said that holding Compartmental Exams in the end of September 2020 would not serve the purpose of helping students who failed in the March 2020 exams, as by that time the admission process to next academic session in majority of colleges and universities would be over.

The CBSE reiterated that it is taking all safety measures during the exam in view of Covid-19. CBSE on Friday pleaded with the Supreme Court against postponement of compartmental exams for Class 10 and 12, telling the court that necessary precautions are being taken for holding the exams this month amid the coronavirus pandemic.

The CBSE's counsel said that the number of examination centres has been increased from 575 to 1,278, and that only 12 students will sit in a classroom for compartmental or reappear exams in view of the social distance norm.

The Court has now directed CBSE to file its response by September 7 and adjourned the matter for hearing on September 10. 

Previous Article on CBSE News 
Next Article on CBSE News 

Counting in Sanskrit | Sankhyavachak Sanskrit Shabd | संख्यावाचक शब्द

Counting in Sanskrit | Numbers in Sanskrit, their Gender | Sanskrit me ginti
संख्यावाचक शब्दों (संख्याओं) का लिंग निर्धारण | संस्कृत में संख्यावाचक शब्द

·     51 => एकपञ्चाशत् 
·     52 => द्विपञ्चाशत् 
·     53 => त्रयपञ्चाशत् 
·     54 => चतुःपञ्चाशत् 
·     55 => पञ्चपञ्चाशत् 
·     56 => षट्पञ्चाशत्
·     57 => सप्तपञ्चाशत्
·     58 => अष्टपञ्चाशत्
·     59 =>  नवपञ्चाशत् / एकोनषष्टिः
·     60 => षष्टिः
·     61 => एकषष्टिः  
·     62 => द्वाषष्टिः / द्विषष्टिः 
·     63 => त्रिषष्टिः
·     64 => चतुषष्टिः  
·     65 => पञ्चषष्टिः
·     66 => षट्षष्टिः 
·     67 => सप्तषष्टिः 
·     68 => अष्टषष्टिः
·     69 => नवषष्टिः / एकोनसप्ततिः
·     70 => सप्ततिः
·     71 => एकसप्ततिः
·     72 => द्वासप्ततिः
·     73 => त्रिसप्ततिः / त्रयसप्ततिः
·     74 => चतुसप्ततिः  
·     75 => पञ्चसप्ततिः
·     76 => षट्सप्ततिः
·     77 => सप्तसप्ततिः
·     78 => अष्टसप्ततिः
·     79 => नवसप्ततिः / एकोनाशीतिः  
·     80 => अशीतिः
·     81 => एकाशीतिः 
·     82 => द्वयशीतिः 
·     83 => त्रयशीतिः 
·     84 => चतुरशीतिः
·     85 => पञ्चशीतिः   
·     86 => षडशीतिः   
·     87 => सप्ताशीतिः  
·     88 => अष्टाशीतिः 
·     89 => नवाशीतिः / एकोननवतिः  
·     90 => नवतिः 
·     91 => एकनवतिः 
·     92 => द्विनवतिः
·     93 => त्रिनवतिः  
·     94 => चतुरनवतिः
·     95 => पञ्चनवतिः  
·     96 => षष्टनवतिः   
·     97 => सप्तनवतिः  
·     98 => अष्टनवतिः  
·     99 => नवनवतिः / एकोनशतम्   
·     100 => शतम् 

संस्कृत संख्याओं का लिंग निर्धारण 
संख्याओं का लिंग परिवर्तन और प्रयोग 
Gender determination of Sanskrit Numbers | How to alter gender (Ling) of a Sanskrit Number and use it in making Sanskrit sentences
  • एक से अष्टादश (18) पर्यन्त संख्या तीनों लिंगों में प्रयुक्त होती है। 
  • नवदश (19) से  नवनवतिः (99) तक संख्या स्त्रीलिंग (feminine) होती है। 
  • प्रथमः, द्वितीयः, तृतीयः में 'आ' प्रत्यय जोड़ ने से उनके स्त्रीलिंग रूप होता है जैसे - प्रथमा, द्वितीया, तृतीया।