Amaron — battery acid spills (leak) in car engine room

Address:

Ernakulam, Kerala

The battery stared to leak and the car engine room is getting damaged.
I purchased the battery from an authorized dealer in cochin area on jan 2019 and within 6 months battery showing issues.

They are not willing to replace the damaged battery. The car dealer confirmed that there is no issue with the battery charging and are normal.

Hence the issue is with the battery. Please let me know what to do in this case to proceed further up