Acting on a tip-off, police intercepted the car at Kherwadi in suburban Bandra last night and seized the defunct notes, Deputy Commissioner of Police, Zone-8, Virendra Mishra said.
The scrapped notes were in the denominations of Rs 500 and Rs 1,000, he said.
The four persons, all employees of a private finance company in suburban Andheri, were arrested following the seizure, the DCP said.
They wanted to exchange the old currency notes with the new ones, Mishra said.
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