Banerjee said the Centre should have consulted the state government and wondered whether it was a 'political visit' by Singh with BJP MPs. Singh was accompanied by party MP S S Ahluwalia.
"Today, Union Home Minister Rajnath Singhji has visited Chhit-Mahal (Indo-Bangladesh enclaves) areas in Cooch Behar, along with BJP MPs. Is it an official visit or a political visit?" Banerjee said on Facebook.
"It is customary to have prior discussion in such cases with the state government. Even though I am now in North Bengal, with a prior programme, I have only received a fax message of his tour programme. I think in our federal structure, we must respect each other's jurisdiction," the chief minister said.
Asked why no West Bengal government official was present during his visit, Rajnath Singh told reporters in Teen Bigha "it is a visit to the forward areas of the border which is being looked after by the BSF."
BJP leader Sidharth Nath Singh, who is the in-charge of party's affairs in West Bengal, refuted Banerjee's claim and said the Home Ministry had informed her office as well as that of the state Governor's on March 25 about Rajnath Singh's visit.
"All offices concerned were informed as per the protocol. The Chief Minister is again bringing politics into the matter of national security," he said.
Referring to the Burdwan blast, he said it was imperative for the Home Minister to visit these border areas.