for the rank 1800, which all branches would be best for me in terms of placement . i want to take a 4 yr btech course in old iit's. give at least 6-7 options.

Dear Sajal,

Congrats for getting such a good rank.

Some of the good options for you are : -

1. Civil ( Bombay, Delhi, Kanpur )
2. Aerospace ( Kanpur, Kharagpur )
3. Production and Industrial application ( Kharagpur )
4. Comp. Sc. (IT-BHU)

For more details refer to  the link below : -

www.askiitians.com/iit-jee-2009-rank.aspx

Thank you.