The price is too high.
Noone is going to buy that thing for more than ₹30k. Its used + the difficulty has risen a lot(this means that now the miner generates less bitcoin) + the difficulty will keep on increasing(will lead to more downfall in btc production). So I recommend you to lower down your prices to get some buyers.
That is true, The difficulty increasing & the earning going down, For 1TH of hash the earning only around 0.01 only & its going down.