A NOTE FOR FRESHERS- if you didn’t make a cut in IITs or got a rank in excess of 2700(when most of the good 4 yr courses are done, IIT Roorkee's Civil, aeronautical being the last available better flavor) u may go for another shot, it s worth it. I won’t say it matters for any of the non IIT colleges but these 6-7 top ones deserve another shot, subject to your thinking and ability to strike a chord. If you are genuinely interested in engineering my answer would be definitely yes for some guy who has cleared JEE in first attempt. Others who doubt their real interests need not bother much.
Remember any ok college in
When you enter a college your AIR becomes a thing of the past, the same way your college becomes nothing more than a mere ticket and an eligibility criterion when you land up with a job. When u make a switch in jobs it’s the last one, u had that matters. In the long run everything balances itself out.