Yes definitely BBose is vakid for IIT and NIT and students must have 75%aggregate marks in 12th for eligibility to IIT and NIT. It is also well accredited and is comparable to NIOS Board. 

All details about board accreditation shared bekow.

http://www.bbose.org

Hello,

IIT Kanpur offer Bachelor of Science programme (B.S). It is a 4 year Undergraduate programme in Chemistry, Earth Sciences, Economics, Mathematics and Scientific Computing, Physics. 
Admission to the programme is done through JEE Advanced entrance exam. JEE Advanced is a national level entrance exam. You will first have to

Hello,
IIT Kanpur offers Bachelor of Science (B.S)  in Chemistry, Earth Sciences, Economics, Mathematics and Scientific Computing, Physics. It is a four year degree programme and admission is done through JEE Advanced exam.

http://www.iitk.ac.in/doaa/under-graduate-programme

Best colleges/universities for B.Sc are University of Delhi, Jamia Milia Islamia, Christ University Bangalore, BHU, etc.

There is Nothing to do with your class 12th Marks while taking admission to IITs. IITs care about your class 12th Marks and that to minimal, there is no weightage to class 12th Marks in admission to IIT for graduation. You just need to cross 75% barrier to getting into

To get into IIT Bombay CSE you need to get rank Under 50. This rank is possible if one score around 300 out of 360 If JEE advance is off 360 marks let. Now the last ranker which gets into IIT Bombay is 2000. SO you really need to work

Hi Amit ,

After getting passed in jsos ,if you would like to study further choose best IIT or nit's or if you are not interested in studying ,then go for the jobs you like to do.because if you think you are strong enough to score marks in your exam

Helo champ, dont lose hope.Just remember one thing, everything happens for a reason. If you didn't qualify iit exam, dont wory u can go for private colleges . There are many colleges. You can also fill scholarship exam for these colleges.  If there is a will,there is a way. You