The notices sent by the Estate Department has asked the former chief ministers to vacate the bungalows in 15 days, a senior official said.
Those served notices include Narayan Dutt Tiwari, Mulayam Singh Yadav, Kalyan Singh, Mayawati, Rajnath Singh and Akhilesh Yadav. They currently occupy prime government properties in the high-security VVIP zone in the state capital.
The court was hearing a petition filed by NGO Lok Prahari, challenging the amendments made by the erstwhile Akhilesh Yadav government to the UP Ministers (Salaries, Allowances and Miscellaneous Provisions) Act, 1981.
Get the latest election news, live updates and election schedule for Lok Sabha Elections 2019 on ndtv.com/elections. Like us on Facebook or follow us on Twitter and Instagram for updates from each of the 543 parliamentary seats for the 2019 Indian general elections.