@PLAZA Sir
This is a million dollor question. Even I hold a lot.
My strategy is to sell in pre open if this one lists above Rs 200/- premium. As per GMP this one is quoting around 210/- now.
If this lists below 200 premium, I will hold for a few days.
As such this has a potential (due to small size and speculation) of going upto 1000 in a few weeks/ months time.
I too, generally, dont keep shares for very long (barring a few).
Wish you good listing gain / post listing gains.