New Delhi [India], February 23 (ANI/NewsVoir): Fourteen-year-old Aritra Neogi, Class IX student of Kendriya Vidyalaya (AFS), Barrackpore West Bengal has won the IIT Roorkee's E-Summit'21 App Innovation Challenge for his app named 'Yesmam - Realtime Classroom'. Aritra's app facilitates virtua