hello arpita,

this is a very common question. the answer is simple, NO YOU DO NOT NEED PRIOR EXPERIENCE IN CODING FOR CSE BRANCH STUDIES. many students from PCMB background end up taking CSE branch in engineering colleges and learn pretty quickly, HOWEVER, IT DOES HELP!

So my advise is that, prior to college starting, try taking up a basic online coding course on Udemy. the cost is less (i think about 400 rupees) to help you a little bit.

hope this helps