A Kolkata court on Thursday dismissed the bail plea of Trinamool Congress (TMC) leader Madan Mitra, who is one of the accused in the Saradha chit fund scam, said reports.

Additional Chief Judicial Magistrate Sougata Roy Chowdhury, who passed the order, also extended the judicial custody of the former West Bengal transport and sports minister by another 14 days till 14 January, reported PTI

The bail application was filed by the TMC leader's lawyer, which said the CBI probe has yielded "no fruitful result".

Mitra, who has been under custodial detention since his arrest on 12 December, 2014, had resigned from Mamata Banerjee's Cabinet only about a year later, on 18 November this year. The resignation came after his counsel failed to convince the court he was not an influential person.

The former minister's lawyer told the court the CBI's "influential" tag on Mitra does not stand after his resignation and hence he be granted bail, the report added.

Mitra's counsel added there was no allegation that the Trinamool leader had tried to influence any person or tamper with any evidence in connection with the case. He urged the court to consider the bail because of the TMC leader's frail health.

Meanwhile, counsel for the CBI rejected any "change of circumstance" and opposed Mitra's petition.