Hello, Shambhavi

In case you are having trouble in logging on BITS then try out forget your password option and then try to reset it. If the problem still persists then mail to the support of your course provider. 

To get into BITS college, you need to write an exam known as bits. The requirements for this exam are

passed 12th or equivalent exam from any recognized board with Physics, Chemistry, Mathematics and English Subjects.

Candidates must have obtained 75% marks in PCB or PCM group with at least 60% in each subject physics, chemistry, mathematics/biology.

If you who have passed the 12th or equivalent exam in 2015 or earlier are not eligible to apply.

 All the best.