Tech for good: Class12 students develop an app to help the deaf, blind and mute communicate with ease 287 Developed by three Class 12 students from Amity International, Delhi, the Practikality app provides an interactive mechanism for the differently abled - the deaf, the blind, and the mute - and is in its final stages of testing. The co-founders of the 'Practikality' app For seven-year-old Rohan Velanki, a partially mute and deaf child, the joy of social interaction was a limited experience. A quiet and reticent child, Rohan began interacting with Sugam, a non-governmental organisation (NGO), which works towards the betterment of abandoned and differently-abled children. Over the course of the next six months,