Indian scientists have tested HAPS, an unmanned aerial vehicle, called High Altitude Pseudo Satellite that can fly in the stratosphere. It can be powered by solar cells to and can hover for days on end. When developed, it will greatly boost India's surveillance and communication capabilities, especially at the border. Find out how, here.

Gravitas: India tests high-altitude pseudo-satellite vehicle HAPS | Boost to border surveillance

Drone for strategic-use powered by solar power is soon to be a reality. Indian firm 'Garuda Aerospace' is working on a solar-powered drone 'Suraj'. Solar cells fitted on the drones large wings, are meant to power the UAV, along with a backup battery.

'Game of drones has just begin': WION speaks to CEO of Garuda Aerospace

The World Trade Organisation upheld earlier ruling that India had discriminated against US importers in solar power sector

WTO rejects India's appeal in US solar dispute; India could be forced to change existing laws

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