Meanwhile, the Finance Ministry has written to police and paramilitary forces to check the movement of huge cash, particularly demonetised 500 and 1,000 rupee notes at civil airports, Delhi Metro, railway stations and bus stations.
Officials said the I-T department brought under its survey action multiple shops and trade counters in Delhi, Bengaluru, Kolkata and Mumbai and has made an inventory of excess cash and sale documents at these locations.
They said the department has also "impounded" some records of sales and have asked the operators and jewellery traders to produce the records at a later stage.
In the meantime, a flier was intercepted by the air intelligence unit of the tax department at the Indira Gandhi International Airport (IGIA) here for carrying cash of about Rs 50 lakh in denominations of the demonetised notes.
Also Read
Under the survey action, the tax sleuths visit business premises of the trader/operator and make analysis of the available stock and record it, whereas under search operations both residential and business premises are visited by the taxman.
The action was launched by the I-T department after it had received "specific inputs" that some traders, jewellers, currency exchange agents and hawala dealers were allegedly exploiting the recent demonetisation of Rs 500 and Rs 1,000 notes and were changing currencies at "discounted" prices, thereby profiteering illegally.
Disclaimer: No Business Standard Journalist was involved in creation of this content