Dear Manish,
I would suggest that you should be filing these four legal proceedings simultaneously.
One Writ Petition seeking cancellation of the Licence Granted by DOT to Bharti Airtel - elaborating the voilation of the terms of the licence conditions. Let COAI be a party to this.
Secondly Civil Suit and Consumer Complaint seeking monetary compensation.
Thirdly criminal complaint Director/principle officer responsible for day to day affairs.
Last but not least you may resort to filing a Winding Up petition on just and equitable ground.
Do your homework correctly thoroughly as plenty of mud slinging, money power is expected.
Best regards
Daksh