@rohiitian Thanks dear.
I haven't done analysis on 10/35% retail differential. Interesting point as it may also have significant effect on volume selling. I have data for this may be some day sit over it.
On second point I did share an email last week somewhere and highlighted that on ipo listing above and below . Mostly if share is listed above GMP then fall / correction is expected by EOD/ couple of days , eg , Tata tech, Doms , Mankind, Jupiter etc . If listed below GMP then expected to touch it's GMP value slowly in some days mostly , eg., Zagle, Samhi, Manoj, RBZ, Sai silk, Jyoti, etc .
Of course once stabilised it moves normal course within 15 days or so .
This is applicable for say 70% of times with exceptions which can give surprises also .
Moral: investors who keep for few days over all gain XX then the losses in few % age.