PRAYAGRAJ, March 5 -- Bollywood actors Ranbir Kapoor and Alia Bhatt visited the Kumbh Mela area in Prayagraj on Monday to promote their upcoming film 'Brahmastra' in a light-and-sound show on Mahashivratri. The actors watched the lightand-sound show as at least 250 drones took to the sky to make formations of the tricolour. The event was streamed live on Twitter and Facebook. As per Kumbh Mela officials, the scene of drones forming the Tricolor in the sky and the display of Kumbh2019 would be included in the movie. Ranbir and Alia also performed 'aarti' on the banks of Sangam in Chhatnag area amid tight security. The actors stayed at Kumbh Sukrit camp of Vihangam Yog. The actors lauded security personnel for arrangements at Kumbh and got a ...