The Aakash tablet, dubbed the world's cheapest computer, has been developed as a public-private partnership aimed at making computing technology available to students in a country where Internet usage is only at around 10 percent.

Makers of the tablet, Britain-based Datawind, say the Aakash 2 is powered by a processor that runs three times faster than the original, has a bigger touchscreen and a battery with a life of three hours.

"Technology enabled learning is a very important aspect of education," Indian President Pranab Mukherjee said Sunday at an official launch function.

"This must be adapted to our specific needs and introduced expeditiously in all educational institutions across the country," he added.