Maruti Suzuki India — Defective Products Defrauding customers

Sir, With due respect I would like to bring into your notice that I purchased a Ciaz (Alpha) Hybrid From Nexa Ghaziabad in 2020. Now after a year through a news report I got to know that there was faulty motor generator unit in my lot of cars, and all of the motor generator units were replaced by the company, now when the company changed my motor generator unit, my hybrid battery wasn’t getting charged, I Asked the company to change the hybrid battery as it didn’t charge due to their faulty generator, in-turn they said you have installed a stereo that is why you warranty is void and you have to purchase the battery now It is upto your better understanding that whether a battery gets discharged due to a faulty motor generator unit or A stereo, plus the battery is for 60000 inr. Now Is this not the responsibility of maruti suzuki co. this is pure fraudulent activities from a company, I Have tried contacting them on twitter but no response.