Kumar arrived at the CBI office here earlier today for questioning by the probe agency in connection with the scam.
The apex court had said that no coercive step should be taken against Kumar.
The top court directive had come in the backdrop of a 'dharna' organised by West Bengal Chief Minister Mamata Banerjee in Kolkata in protest against the CBI's move to enter the top cop's office without any warrant from the competent court.
Kumar has been serving as Kolkata's Police Commissioner since January 2016. He is said to have not responded to the earlier summons from the CBI in connection with the probe into the Rose Valley and Saradha ponzi scams.
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