hi deveshar,

Don't worry if your CGPA is low. To be eligible for BITS HD or to get admission in  BITS for post graduation you need minimum of 60% marks in B.TECH. or 6.3 CGPA.

But I will suggest you to get your cgpa till 6.5 till the end of 8th sem. Its an online exam. Application form fee is GATE qualified candidates Rs 1000 for gate qualified candidates and Rs 3300 for all other candidates.

I hope this answer will help.
All the best for the future!!