Hello Bhaskar,

As per the plast year placement, yuo should go with BITS pilan, BITS Pilani shows better placement in chemical branch also than the BITS GOA. and BITS Pilani also better in Campus as well as Degree Value. 

BITS Pilani is oldest among all birla colleges, and all the other colleges is only a branch of BITS Pilani. BIT GOA also gives degree of BITS pilani.