Police on Monday arrested four persons, including the principal of the Gujarat college, where authorities allegedly forced over 60 girls to remove their undergarments to check if they were menstruating a week ago, an official said.

The February 11 incident took place at Shree Sahajanand Girls Institute (SSGI) in Bhuj.

Principal Rita Raninga, hostel rector Ramilaben Hirani, college peon Naina Gorasiya and one Anita Chauhan were arrested.

They have been sent to police custody for two days.

Darshana Dholakia, who holds the charge of vice-chancellor at the Krantiguru Shyamji Krishna Verma Kutch University, to which the SSGI is affiliated had told earlier that the hostel has a rule that girls having periods are not supposed to take meals with other inmates.

However, some menstruating girls broke this rule. When the matter reached the authorities, some of the girls voluntarily allowed a women employee to check them, he claimed.