Dr. Sugandha Gonsagi practices at Smiles Dental Clinic Dr. Sugandha Gonsagi is a Dentist in Nerul, Navi Mumbai and has an experience of 31 years in this field. Dr. Sugandha Gonsagi practices at Smiles Dental Clinic in Nerul, Navi Mumbai. She completed BDS from Government Dental College & Hospital, Mumbai in 1987.