Yelp!! Need calcification on this IPO.

One of the promoters of CAMS , NSEIL has to sell of its shares so that they don't get locked in for 3 years with them. Plus the ipo is overpriced too. Could it mean something bad for the long term?

The reasearch says company is doing good. But the only thing that concerns me is that this promoter will be giving out all of its share in the market. Plus partial OFS from other promoters too. If the buying interest goes away even for a little while, it could be hell. Right ?!

EDIT - Heading autocorrect. Clarification*