India, May 21 -- West Bengal chief minister Mamata Banerjee directed officials from the north Bengal districts on Wednesday to maintain close vigil on the state's border areas and ensure that infiltrators and terrorists do not get an opportunity to sneak in.

"I have information that some people entered through the Assam border and other places and collected Pan card numbers and details of other identity documents from local people. Keep a close watch on the border," Banerjee told officials from Malda, Cooch Behar, Alipurduar, Darjeeling, Kalimpong, East Dinajpur, West Dinajpur and Jalpaiguri at an administrative meeting in Siliguri town.

"Share personal information only with people authorised to collect it. Be careful about fake videos ...