Viral C Shah, the proprietor of Parshwanath Motors in Ahmedabad, had been absconding since a case was registered against him on April 7 this year, a CBI spokesperson said here.
He said a look-out circular was also issued against him.
"The accused was spotted at the Ahmedabad international airport when he was returning from the USA and was arrested later," the spokesperson said.
The account had been lying dormant for nearly three-and- a-half years prior to that, the FIR alleged.
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It is alleged that branch manger Bhaskar R Soni, while accepting huge amounts of demonetised banknotes, did not obtain mandatory documents from Shah to establish the identity of the firm and to justify such deposits after a long gap.
The agency has alleged that Shah deposited the currency notes to the tune of Rs 1.49 crore in a dormant account and brought the unaccounted money in the banking channel which was further transferred to other accounts by way of RTGS and NEFT.