Hello Aspirant, 

For falling in the safer zone to get a seat procured in the first list in B Sc physics, one need to secure about 80-85% score, but it falls down to some extent in subsequent rounds, so it will be quite safe to say that the cutoff bar could go as low as 70% score till 3rd round. And as you have mentioned your rank as 232, you could have chances for procuring a seat there. 

This might help you with your query. I hope it helped you.  :)