The Panchkula police have tightened their grip around dera followers who went on the rampage in the city after Dera Sacha Sauda chief Gurmeet Ram Rahim Singh was convicted on August 25.

In the latest development, the Panchkula police have now slapped sedition charges on 137 dera followers, who were arrested on August 25 and 26.

A majority of the dera followers booked under sedition charges are from Punjab, Haryana, Delhi, Uttar Pradesh and Rajasthan.