You can transfer upto 1999 with any charges. And any app will not permit to transfer to same merchant name and same credit card holder name.
You can use your family merchant account for money transfer from your card .
And Paytm will be allowed upto 5 or 6 lacs per year sole proprietorship customer. Your Card also declined some times if you send same merchant regular.
Overall no problem with income tax department, if you transfer your own family member maximum 7.5 lacs per annum.