Suppose I have Rs. 1 lakh in my account and i buy shares of Rs. 1 lakh through delivery based trading and sell them on the same day. Will it be automatically converted into day trading? If it does not get converted into day based trading, then how many days will it take for settelment? And can I again buy shares of Rs. 1 lakh on the next day? Or do I have to wait till settlement?
Yes if you buy and sell on same day it will be considered intraday trades and charges will be applied for intraday and not delivery.
Same is applicable when you sell and buy on same day. Example you have some shares in demat account. You sell those shares today in delivery and buy back those same amount shares before evening, then overall you have done an intraday trade. The shares in your demat will not get affected. The purchase date of the demat shares also will remain as it was before.
If you have bought/sold for delivery and have not done the opposite order within the same day, then the shares will be considered for delivery. The settlement will happen in 2 days time. We say T+2 settlement, Trade day + 2 additional days.
If you want to sell those shares before settlement, it is considered as BTST. This is possible. You can read more details here http://tradingqna.com/5373/stock-equity-charges-charged-equity-intraday-equity-delivery
Yes, you can buy. Simple way to get the answer by urself is to buy for 1000Rs as delivery based trade and sell it before the market close. Whatever the behavior u observe for 1000Rs wud be the same for any amount.
How much could be the auction penality? maximum and minimum
details abt auction and exchange penalty is given in this link