I have purchased Raspberry Pi from Amazon which has 1Yr Manufacturing warranty

I am gonna tell you how it really works.

The seller cannot really honor the  factory manufacturer warranty. They say it has "a 1 yr manufacturer warranty" when they sell it, but they believe you are on your own to file the warranty claim. They are not usually an authorized dealer so cannot do warranty claim themselves.

In a nutshell, The warranty was void the moment you purchased the Pi from a third party/ non-authorized dealer. Your only recourse, is to file a dispute claim with Amazon and ask for refund. Then you let the person who sold it to you figure out what to do about Factory RMA/warranty claim. You no longer need to worry about it.

Next time, buy a Pi from an authorized dealer if you want an intact manufacturer warranty.

That isn't how manufacturer warranties work.

It is true warranties for resale are muddy, especially with the  The amazon store buys it from pi foundation with a tact warranty, you buy it from the amazon store within the warranty period, you still have X remaining time of warranty.

This is probably what you're looking at:

The term “consumer” means a buyer (other than for purposes of resale) of any consumer product, any person to whom such product is transferred during the duration of an implied or written warranty (or service contract) applicable to the product, and any other person who is entitled by the terms of such warranty (or service contract) or under applicable State law to enforce against the warrantor (or service contractor) the obligations of the warranty (or service contract).

But it has been void by 2002 General Obligation and construction of contract principals.

(1) Express warranties by the sellerare created as follows:

• (a) Any affirmation of fact or promise made by the seller to the buyer which relates to the goodsand becomes part of the basis of the bargain creates an express warranty that the goods shall conform to the affirmation or promise.
• (b) Any description of the goodswhich is made part of the basis of the bargain creates an express warranty that the goods shall conform to the description.
• (c) Any sample or model which is made part of the basis of the bargain creates an express warranty that the whole of the goods shall conform to the sample or model.

No ifs ands or buts. Warranties transfer to resale. It is the manufacturer's job to serialize and keep track of warranties, and provide warranty when proof of purchase is admitted.

That isn't how manufacturer warranties work.

It is true warranties for resale are muddy, especially with the  The amazon store buys it from pi foundation with a tact warranty, you buy it from the amazon store within the warranty period, you still have X remaining time of warranty.

This is probably what you're looking at:

The term “consumer” means a buyer (other than for purposes of resale) of any consumer product, any person to whom such product is transferred during the duration of an implied or written warranty (or service contract) applicable to the product, and any other person who is entitled by the terms of such warranty (or service contract) or under applicable State law to enforce against the warrantor (or service contractor) the obligations of the warranty (or service contract).

But it has been void by 2002 General Obligation and construction of contract principals.

(1) Express warranties by the sellerare created as follows:

• (a) Any affirmation of fact or promise made by the seller to the buyer which relates to the goodsand becomes part of the basis of the bargain creates an express warranty that the goods shall conform to the affirmation or promise.
• (b) Any description of the goodswhich is made part of the basis of the bargain creates an express warranty that the goods shall conform to the description.
• (c) Any sample or model which is made part of the basis of the bargain creates an express warranty that the whole of the goods shall conform to the sample or model.

No ifs ands or buts. Warranties transfer to resale. It is the manufacturer's job to serialize and keep track of warranties, and provide warranty when proof of purchase is admitted.