Ravinder Kaul, Rahul Sahai and Anil Swaraj Gupta launching the Just Call Mobile App. By Daily Excelsior - December 15, 2016 Share FacebookTwitterWhatsAppPinterestLinkedinCopy URLTelegramEmailTumblrReddItPrintKoo Ravinder Kaul, Rahul Sahai and Anil Swaraj Gupta launching the Just Call Mobile App. Ravinder Kaul, Rahul Sahai and Anil Swaraj Gupta launching the Just Call Mobile App. Follow our WhatsApp channel