India, Nov. 11 -- A retired school principal has been detained in Assam's Cachar district for allegedly posting an objectionable comment on social media in connection with the blast near Delhi's Red Fort on Monday.

Cachar senior superintendent of police (SSP) Partha Protim Das said the police took suo motu cognisance of the matter and summoned the accused, identified as Nazrul Islam Barbhuiyan, for questioning on Tuesday afternoon.

Barbhuiyan, a resident of Rongpur area in Silchar town, was initially taken to the Silchar Sadar Police Station and later to the office of the SSP for interrogation.

According to the police, Barbhuiyan, who earlier served as principal of Banskandi NMHS School in Cachar, commented on a social media post about...