I m doing my graduation in economics but secured a very less mark in physics chemistry and maths in 12 th can I rewrite the exam in NIOS

Hey, the Institute of NIOS has not mentioned anything about if you can give after graduation or not. The only eligibility criteria of the exam are that you should have passed class 10 from a recognized board and that you should be 15 years old and above. There is no age limitation. So according to the eligibility criteria, you are eligible to write the exam. I would, however, advise you to ask the institute once and confirm it so that you will not have any problem. I hope this helped.

Best wishes.

National Institute of Open Schooling conducts on demand examinations for candidates wanting to give their class 12th and 10th examinations twice a yer, once in March and once in September. NIOS generally issues the admit cards for the examination about 1 month before the date of exam.

As for your question, you cannot appear for both simultaneously bcause then you will have been doing both intermediate and graudation together.

For more information, follow the below link:

Https://school.careers360.com/articles/nios-admission