Pls suggest the preference order: Textile(IITD),Metallurgy(IIT

K,Kgp,R,B,M),petroleum(ISM),MINING(ISM),BIOTECHIITD,K,KGP,R,G,M,B),(

you want a judgement on placement obviously. in kgp, kanp,madras,mumbai,delhi you will get better placements than in guw, roorkee or bhu. but you will get bored in all of them unless you seriously wish to build a career in one of these industries. lots of mugging involved. petro may later push you to the middle east and make you wealthy.mining is in demand outside india. but all this doesnt matter if you r not interested in the subject.  

all the best