What is the minimum and maximum package I will get if I choose mechanical engineering from IIT?

@ rahul 
even the minimum and maximum package will depend upon the company that is going to hire you and also the GP u have earned in the iit , and the type of iit , beacuse iit bombay mechanical is not same as iit BHU , so, 
prev year the highest touched 50-75 lakh per annum for iit kanpur and iit delhi ., bombay 
and the minimum should be 35 lakh per annum . 
HOPE IT CLEARS YOUR DOUBT 
ALL THE BEST ..