Garg says the benefits are manifold: It takes up to two hours and 150-200 kilograms of wood to burn a body completely, while a traditional pyre takes six hours and burns 500-600 kilograms of wood.

At just 24 years old, Garg has two ventures to her name.

In a keynote entitled "Grand Challenges for game Developers" delivered at the game Developers Conference on Wednesday, Garg focused on videogames' unique ability to engage, immerse and teach.