Post closing session

Hello Mr.Bhuvanesh.
In post closing session (3.40 to 4pm), is it possible to create new orders by retail traders?
Today, at 3.50pm, I placed an order to buy 100 quantity of M&M Finance @ RS.441.05(I choose this amount as bid quantity was more than 4000 for the amount). But my order rejected stating “Rejected reason : only board lot markets are allowed”.
I read somewhere that we can trade. Please clarify.

Check this post

Thanks Bhuvanesh, for clearing my doubt.