Weapons that Maa Durga carries, were gifted to her by different Gods. Like: Trident from Rudra, Kamandalu from Brahma, Ratnahar from Kuber, thunderbolt from Indra. Who gifted her The Discus (Chakkra)?

According to Hindu mythology, different gods gifted weapons to Durga for her battle against Mahishasura: Vishnu gave the discus (Chakra), Shiva gave the trident (Trishul), Brahma gave the water pot (Kamandalu), Kuber gave the Ratnahar, Indra gave the thunderbolt (Vajra), and others gave various weapons. Krishna is an avatar of Vishnu but the Chakra is specifically associated with Vishnu in this context.