Tin no.

The data is shared by diffrent governmental departments, like Excise &service tax, income tax, vat etc.

Your income tax file reveals your nature of business and turnover, which may have service tax &/or VAT liability, and hence you get the query.

Sir. Man lijiye ki   current a/c  or cc limit me trasaction hue  h wo min t/o limit se jada h ( in chhattisgarh state min t/o limit  is more than 20 lacs for tin registration ).means current a/c or cc limit me transaction 20 lacs se jada ho chuke h to kya sale tax deptt dwara  ye trasancton source of proof mane ja sakte h  jisse ki deprt tin registration ke liye notice bhej sake

Not Directly through bank or AIR reporting, unless exceeded 50 lakhs.

But in case of any hint received by department, they have rights to search and enquire.