Mahindra And Mahindra — battery change fraud by natraj automobile

Address:

Lalitpur, Uttar Pradesh, 284403

I have taken a service at natraj automobile lalitpur. At the time of service they changed my new battery with someone's old battery. At that time on my complaint he gave me claim form and warranty card for new battery.
Many times i have made complaint on mahindra and mahindra but they denied to change saying warranty period for battery is over, however this change in battery was done when battery was under warranty period and should be changed. Do the needful otherwise i will take some legal action against you.