'Pheromones' in air unite male and female moths

Researchers have recently studied male moths process of detecting their female partners miles away with the help of 'pheromones' in the air.

Ritwik Ghatak`s life on celluloid

The turbulent personal life of filmmaker Ritwik Ghatak, which often finds an echo in his own films, is being brought alive on the big screen by actor Saswata Chatterjee.