Can i buy share when market is close..

Hi
i am new into the stock market
and recently joined this great great forum....and i am very happy to have joined it....


I have a query in mind that i hope you can clear...

Can i buy any share at say 9:30 am before the markets open...

And if i have 50000 rs and i buy any share and sell after 20 mins.....can i buy any share with this money after 5 mins... ???

My broker is shriram insight ....

U cannot buy before mkt opens but certainly can place order in the session called pre opening session at 9.50 am.
for ur second query to sell.....if ur order is confirmed in pre mkt opening....u have to wait till mkt opens.....if ur desired scrip is bought in ur a/c....then only u can sell the same the very nxt moment.......got it ?

If i place an order in pre opening session will i get the shares as soon as the market opens (i mean without any delay)... and will i get shares for all pre opening session orders ..