"I have instructed all districts under this (Aligarh) division to enforce prohibitory orders under Section 144 of the CrPC. We are not going to allow the conversion camp proposed on December 25. All steps are being taken to stop this," Aligarh range DIG Mohit Agarwal said .
The order, which bars gatherings of more than four persons, will also cover the neighbouring Hathras, Etah and Kashganj districts. The areas, like Aligarh town, have an overwhelming minority population.
The Dharma Jagran Samanway Vibhag, a Sangh offshoot, has announced plans to "reconvert" 5,000 Christians and Muslims.
Uttar Pradesh BJP MPs, Yogi Adityanath of Gorakhpur and Satish Gautam of Aligarh, have said they will preside over the programme.
Adityanath has accused the Aligarh administration and media of presenting a "distorted perception" of the plans. "People are willing to reconvert in our programme we call ghar wapsi (homecoming). The event will happen as scheduled and I will be there."
Vidyaram Pandey, an Aligarh RSS leader, slammed the curbs clamped. "This is a programme for forging unity among Hindus. How can the police ban it? We will go ahead and hold it."
The showdown signals came even as the hunt for Kishore Valmiki, the leader alleged to be behind the Agra conversions and associated with the Jagran Vibhag, continued. Valmiki's son Rahul and an RSS activist, Krishna Kumar, were arrested last night from Etah on charges of trying to organise more conversion camps, the police said.