In an unusual standoff at Burdwan University, Vice Chancellor Shankar Kumar Nath on Monday locked the chamber of Registrar Sujit Kumar Chowdhury, accusing him of trespassing and illegally occupying the post despite his retirement in January.

The confrontation escalated after Chowdhury filed a police complaint against the vice chancellor, alleging he was unlawfully prevented from carrying out his duties. Chowdhury said the state higher education department had granted him an extension in September, allowing him to resume his role as registrar.

Nath, however, disputed the claim, saying he had received no official communication about Chowdhury’s extension or reinstatement. “He (Chowdhury) entered the chamber forcefully without following any rules and his conduct is hampering the activities of the university,” the vice chancellor said.

Chowdhury countered that he held documentary proof, including an email from the department, confirming his extension. He said he rejoined the post on Sept. 9 after notifying the vice chancellor in writing.

Chowdhury had officially retired from the registrar’s post on Jan. 31 but requested an extension from the higher education department. He said the request was approved last month, but the vice chancellor refused to recognize his return.

Nath had earlier lodged a separate police complaint against Chowdhury on Sept. 20, charging him with forcefully occupying the office.

Police said both complaints are under review.