Dear Vatsal, sorry to disappoint you but 300 score is not enough to fetch you with seat in BITS PILANI in CS branch. As per 2019, cut off for CSE was 383.

In the year 2018, the cut off for CSE branch was 378 and 382 in 2017.

So, you can see the cut off trends for CSE in BITS PILANI. Your score should be above 380 and that too doesn't confirm your seat.

These trends may change next year as cut offs depends on various parameters.

All the best

Hope this helps