which branch civil/elec. eng. is good in iits in terms of placements and future scope?

electrical engineering is a far better option both in terms of further studies and package...you have options of getting into software firms,core electronics company or an electrical and electronics based psus like ntpc,powergrid,drdo,gail,ongc and almost all companies involve control systems in their functioning which is a work of electrical and electronics engineer...so almost every hardware company is also open to you....