Dear Kranthi.
Bharti Airtel is looking good to buy as it is showing the short covering.
People had entered in the short at range 340 and now they will book loss and fresh buying will be seen in next week.
So one can buy in cash market if your having 50,000, you can buy futurte of Bharti Airtel.
Also if you know derivative trading you can buy call option of March contract ( near strike price 360 call option)