Regarding margin and BTST

Hi, I am new on zerodha. Please give answer for following queries. Case1. I bought 1 share of xyz company using margin @38708 and sold in intraday @38880 I am safe side or is there will be any penalty. Case2. What if I didn’t sell the above mentioned share on the same day, if I want to sell it tomorrow, day after tomorrow or later. When I need to deposit rest amount in my demat in order to convert it to delivery by same day EOD or I can transfer the amount tomorrow as well.

http://zerodha.com/varsity/chapter/shorting/

http://zerodha.com/z-connect/queries/stock-and-fo-queries/consequences-of-short-delivery-nse-bse