BUY GUIDANCE: Never buy before 3PM (for positional trading). I have been burnt many times over. Try to buy between 3:15 - 3:30PM, later the better. (Though this one can be bought half quantity in the morning and the rest after 3pm.)
SL: Depending on your risk appetite: Below Weekly BO Candle / Below Daily BO Candle / 50% of Weekly BO candle / Below 20DMA TGT: After a 10-15%+ vertical move, breakdown of 20DMA (on a daily close basis)
SELL GUIDANCE: Selling in Profit: Sell earlier in the session when the prices are higher, around 11AM.
Selling at SL: Give your stock a chance to recover by end of session. If it doesn't recover, sell anywhere between 3:00 - 3:30PM.
Note: The breakout levels are derived from the weekly line chart which is respected much more by smart money.
DISCLAIMER: I reserve the right to be wrong. I am not a SEBI registered analyst. Please consult your financial advisor before investing.