India, Aug. 2 -- Minister of state for external affairs V Muraleedharan on Sunday started a day-long hunger strike to demand the resignation of Kerala chief minister Pinarayi Vijayan over the gold smuggling case in the southern state.

Muraleedharan, who belongs to Kerala, is holding the day's fast at his official residence in New Delhi.

"This is not only a gold smuggling case but it is related to India's security. It is also related to the financing network of terrorist organisations. A thorough probe should be conducted. Kerala CM must resign. This is our demand," Muralidhar Rao, the BJP's national general secretary, was quoted as saying by news agency ANI.

The opposition has stepped up pressure on the Vijayan-led Left Democratic Fron...