Of course, I haven't seen the details of whether it's an effective tool or not, but as a free service that can only improve and scale over time .. should be a gamechanger.
(For those outside India who are not aware of the exam that the academy is targeted at, its for admission to a collection of premier Engineering schools in the country. The exam is taken by over 1 million students annually, with a ~ 1% acceptance rate. There is a huge cottage industry of paid 'tutorial classes' and online programs to help students succeed in the exam.)