Natural Farming by Akash Kumar, DAV Bhagalpur
Making Urea by co2 vehicle by Aarav Kumar DAV Bhagalpur
Safty & Security of Statue by Anjali Kumari Supaul
Smart Criefcase by Tapsi Kumari, Supaul
Train Accident By Sujata Kumari, Supaul
Natural Farming by Rani Kumari, Katihar
MANAV SHARIR SE VIDHUT PRODUCTION BY VIKASH KUMAR KAIMUR
KACHRA PRABHANDHAN BY SHALINI KUMARI SUPAUL
Waste Management By Arya Prasun DAV Bhagalpur
WASTE MANAGEMENT BY AAYUSH KUMAR SINGH JAMUI
ECOFRIENDLY COOLING SYSTEM BY KUM KUM KUMARI KHAGARIYA
Automatic Fire Extinguishing Robot by Nikhil Aryan Nalanda
Collapse system by Adarsh Kumar Singh, DAV Bhagalpur
SURFACE AREA AND VOLUME BY YASH GAUTAM KATIHAR
Tribhuj ke Kon ka concept by Chaitanya, Dev West Champaran