Amid a row over "lapses" at President Droupad Murmu's event in West Bengal, the Centre has sought a response from the state government by 5 pm on Sunday over the "violations" of the rules related to protocol, venue and route arrangements during the visit, sources said. In a letter to West Bengal chief secretary, the Union home secretary has asked him to furnish a response on the violations of the 'Blue Book' rules of protocol, venue and route arrangements. The 'Blue Book' is a confidential document which lists out rules for the security and protocol for the President, Vice-President and the prime minister and their families. President Murmu on Saturday expressed dismay over a low turnout at a tribal community event near Bagdogra airport, and questioned the decision to shift the venue from Bidhannagar. She also noted the absence of West Bengal Chief Minister Mamata Banerjee and her ministers during her visit. Highly placed sources said the communique sent to the West Bengal chief .