i have secured 6600 rank in iit '12 and have no idea what to opt in counselling. i don't have any personal choice or preferances.

  lalmani, first of all congratulations...

there r plenty of options available 4 u.. u can refer to d councelling brochure and the jee website where u can find openig and closing of ranks in jee2011 and can choose a branch accordingly..

http://www.jee.iitk.ac.in/

hope this may help u ..

all d best