Two students, Vartika Patil and Umeshwari Sahu, from Chhattisgarh’s Raipur earned praise from international judges for their rainwater harvesting and geospatial technology project during a competition. The event was held at IIT Tirupati on July 22, with students from six states participating. The duo from PG Umathe Excellent Government School were the only participants from Chhattisgarh.