Young innovator Harshika Alammayan from Dhekiajuli showcased her diaper-free E-Mat model at the NCERT National Children’s Science Exhibition 2025 in Bhopal, earning national recognition for her practical and child-friendly innovation. https://english.mathrubhumi.com/multimedia/videos/assam-girl-e-mat-national-science-exhibition-mnzron30?utm_source=dlvr.it&utm_medium=mastodon #HarshikaAlammayan #Assam #Student #YoungInnovator #NCERT