Founded by Ankit Jain, Puran Singh Rajput, and Narayan Lal Gurjar, Udaipur-based EF Polymer has raised $17.8 million in its Series B round. The deep-tech startup will use the funds to expand its bio-based, biodegradable polymer production, enhance R&D, and scale operations across Japan, the US, and Europe to boost sustainable agriculture and water conservation.