₹58.90 lakh has been incurred on Co-WIN, as on February 1 this year Aadhaar is not mandatory for registration on Co-WIN portal, Union Minister of State for Health Ashwini Choubey informed Lok Sabha on Friday.Providing details about the Co-WIN portal, he said it has been developed by the Ministry of Health, government of India with the support from the United Nations Development Programme (UNDP), India Office.On whether Aadhaar is mandatory for registering on the Co-WIN application, Choubey, in a written reply, said, "No, Aadhaar is not mandatory for registration on Co-WIN portal." He further said that Rs 58.90 lakh has been incurred on Co-WIN, as on February 1 this year.