Adda52 — deduction of tds on winning amount

Address:	Ambala, Haryana, 135003
Website:	adda52.com

This is online betting website.
Any winnings of above INR 10000, it has been mentioned that TDS will be deducted at source.

Now TDS in consumer terms means tax over income/profit.

Even if the overall balance is still in loss for an user account, TDS is again being calculated when I am trying to withdraw my money:

For eg:
total buy in in same fiscal year:
50000 +
50000 = INR 100, 000.

deduct 60000 for the loss when I play.
Net balance = 40, 000.

One good day I make 20, 0000

Now, the current situation is:
Net investment: 100, 000
Loss = 60, 000
Net worth = 40, 000(balance) + 20, 000 (winnings) = 60, 000
Overall Loss = 40, 000.

TDS = INR 5, 000. ?

What is this calculation ?

This is nowhere in terms of capital gain tax as far as understood, especially considering the investment under same name, same account, in same FISCAL year.