[Resolved]  Cars24 Services — Not buying my car after promising to but that

I have a car which i wanted to sell, approached cars24 (Cars24 services private limited), they quoted a price of rs 7, 70, 000 to which i agreed. Cars24 also paid me an advance of rs 1, 000.
On the same date, i had approached other vendors where i received a price of rs 7, 60, 000, however went ahead with cars24 because their price was higher and they are a reputable concern.
However a few days later cars24 came back saying they can not go ahead with the deal. This caused a huge loss to me, as i had other buyers to whom i had said a no basis cars 24 confirmation.
I eventually sold the car two weeks later at a price of rs 6, 95, 000.
I had followed everything instructed by cars24, and even after the deal was cancelled, as a token of good will, i returned the rs1, 000 advance.
Since cars24 did not value their contract and withdrew it unilaterally, i would request your goodself to kindly instruct cars24 to compensate me for the loss of rs 65, 000 (Rs 7, 60, 000 – rs 6, 95, 000) that i suffered in the process and any other damage that you deem fit for the harassment and mental agony.
I have written to cars24 quite a few times after that, but i did not receive any response, except follow up messages to return the rs 1, 000 else threatening me of legal consequences.