Amaron — warranty card lost, dealer refused to replace faulty battery, only 12 months old

Address:

Panipat, Haryana, 132103

Sir,
I have purchased an amaron battery for personnel use from the companies dealer in panipat, haryana in november 2017, and now in october 2018 the same battery have stoped working. It is not charging at all and is completely dead. I have shown it to the dealer as well, he tried to charge it overnight through a charger but still not working.
After the dealer was sure that the battery is actually faulty, i asked for a replacement as it is under 18 months warranty period. But the dealer insisted on bringing the warranty card. I had a copy of the bill with me and the battery also had all its serial numbers and date of manufacturing written on it, still i was denied a replacement as i could not produce the warranty card. I am unable to understand the policy here.
If warranty card is everything, then why print the information on the battery and why give a bill.
I feel cheated and all that amaron is trying to do is to sell faulty batteries and then refuse to replace them.
Never ever buy amaron again.