Move comes at a time when the UPL is trying to strengthen its seed portfolio. : Mumbai: UPL Ltd, formerly known as United Phosphorous Ltd, has initiated exploratory talks with Telangana-based Kaveri Seeds Co. Ltd for a potential stake purchase, said two people aware of the discussions. The development comes at a time when UPL is trying to strengthen its seed portfolio. UPL has become one of the largest crop protection firms globally. “Going ahead, however, chemical-based crop protection will lose currency and genetically modified seeds with in-built disease resistance will continue to gain market share.