The Enforcement Directorate had arrested him after a raid in connection with a black money probe which led to the alleged seizure of Rs 13.6 crore from his law firm.
Tandon's bail plea was rejected by Additional Sessions Judge R K Tripathi. ED strongly oppossed his contention on the ground that the investigation is at a crucial stage.
He was arrested on December 29 last year and after initial interrogation, he was sent to judicial custody for 14 days on January 2.
He argued that ED has no right to arrest the accused as the source of funds involved in the alleged transactions was yet to be ascertained.
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businessman Paras M Lodha and Kotak Mahindra bank manager Ashish Kumar -- were arrested in separate PMLA cases.
They are also in the judicial custody.
Lodha has also moved a bail application which has been opposed by ED which has alleged that he was involved in the offence of money laundering which "frustrated" demonetisation policy of the government posing "serious threat" to financial health of the country.
Lodha was arrested on December 21, 2016 in connection with alleged conversion of over Rs 25 crore old currency into new notes and his bail plea will be heard on January 11.