Tax implications on transfer of trading account

As such it may not be sell transaction, but you need to pay STT while transfer, and as such there will be reporting of the transfer of shares of particular value.

Now, you will be required to reply to ITD about its transfer between same PAN, in case of inquiry.

Thanks for the response.

It's not transfer between same PAN, it would be from my wife's PAN (jointly owned with my PAN)  to my PAN. 
Who has to pay STT, me or my wife? 
Other than this, do I or my wife have to pay any taxes. I am not planning to sell the shares (after the transfer) at least for a year or so. Would the cost basis be the market price on the date of the transfer?
 

1. Do you have any evidence about her contribution in investment?

2. Yes, date of transfer if sale transfer; otherwise original purchase date.

1. These were purchased some 20 years ago by me as joint (my wife - 1st applicant, me - 2nd applicant).
It doesn't matter who pays STT as the amount should be very small.

2. It's not a sale transfer, So, I guess its original purchase date. But for capital gains calculation, the cost basis is 31st Jan 2018.

So, other than STT there's no taxes to be paid. Right?