Which time frame and strategy apply give me good profit for intrday trading and what amount is required nifty future for one lot size?
If you use proper money management then you might be having substantial chances of survival in trading profession. Assuming five times leverage fair for nifty futures. You should use 1.6 lakhs as margin per lot for day trades in nifty futures.
Stop losses should be placed as per own comfort but dont risk more then 25 points per trade. Although every trade we initiate has only fifty percent probability of success. Always be prepared to be whipsawed by market .
Time frame is a subject to personal preference in usual volatility five minute time frame is fine. But during higher volatility fifteen minute time frame is better to opt for.