From , via Greg Mankiw.

Degrees Degrees
Annual pay for Bachelors graduates without higher degrees. Typical starting graduates have 2 years of experience; mid-career have 15 years. See full methodology for more.

I mean, yes, that Aero charts highest is a surprise, but even so. Divide by 5 for median IITian salaries, I guess (and then multiply by something if you want PPP values, so it might not be that bad), and divide by another 1.5 for salaries from most engineering colleges. I find it surprising that Finance is 16th or so (click on the link for the full list), although that might be a classification thing, given that “Economics” is just below Elec.