Bihar

Hello Vikash,
Sometimes many a times we have to bow to our fate. Accident is an accident. Take it as a blessing , prepare very well so that this subject alone will pull your percentage high! Best wishes

Refer the link below for the details :
https://www.shiksha.com/it-software/colleges/bca-colleges-patna

1.Pragya Civil Services
Coaching Center Near Patna College, Ashok Rajpath Rd
2.Sarvodaya Civil Services
Coaching Center Opposite Patna College, BM Das Rd

Yes for sure, you can go for the change. You can appear for 12th from NIOS board the next year and change the concerned board during form filling easily.

Join a undergraduate course like BA or B.Sc from any stream and prepare for civil services exam. You can also go for the Bank related exams.
All the best.

Hello Chandan,
You may refer the links below for the list of colleges in Bihar and Mumbai for BCA:
1) https://www.shiksha.com/it-software/colleges/bca-colleges-bihar
2) https://www.shiksha.com/it-software/colleges/bca-colleges-mumbai-all

Hello Aditya,
Yes, the students from other states can also apply for TNEA counselling. For that, you need to meet the required eligibility conditions. You need to apply for counselling at www.annauniv.edu. I think the applications have been closed on May 31st and the counselling process is about to start.
For more details, refer:
https://www.shiksha.com/b-tech/exams/tnea

You can pursue B.Sc in chemistry or botany.