How to get AirPods warranty claimed in Chennai?

I bought Airpod pro max & Airpod pro in amazon from US but now i returned back to India i have some issues with my new gadgets when i reached service center in chennai, Tamilnadu, India they requested for invoice but from Amazon i got only final details of order copy which in India they are not accepting since there is no details of invoice number. However, i do check with US Amazon they mentioning order # is the invoice #.

Apple support struggling on these since they didn't handle a scenario like this.

Anybody can help me out to get warranty claimed in chennai.

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