Mohali is a city adjacent to Chandigarh, 18th District in Punjab, India. It is officially named after the eldest son of Guru Gobind Singh, Sahibzada Ajit Singh (SAS Nagar, or "House of Sahibzada Ajit Singh"). It, along with Chandigarh and Panchkula, form a part of the Chandigarh Tricity. It was earlier a part of the Rupnagar District, and was carved out into a separate district in the recent years. Punjab government has again changed the name Mohali to Ajitgarh.