Another indigenously developed contraption mounted on a tripod that Rajesh proudly points to, which is also open for "dual ...

Wind energy usually means elaborate set up with wind turbines stretching along the horizon. But Usha-Urja, a humble device ...

Wind energy usually means elaborate set up with wind turbines stretching along the horizon. But Usha-Urja, a humble device indigenously developed by Indian Air Force harvests wind energy almost out of ...