i have purchased the I phone 15 from Flipkart and serial number start with D .what is the meaningnof this D started Serial number?

The starting character of the serial number is 100% irrelevant, as Apple uses randomized serial numbers.

The Model Number of your iPhone is much more useful. What is the Model Number?

Settings > General > About > Model Number

We asked you for the Model Number of your iPhone.....which can provide valuable information about your iPhone.

But....you have not supplied this information. If you want to know more about your iPhone, please provide the Model Number.

gajendrasinh128 wrote:

Yes my question is only that I received genuine device or not.?

How would we know if you received a genuine Apple product or not?

And if this is not genuine then what should I do?

Try to get your money back from the seller?

Take the matter to the legal authorities in your country?

File a dispute with your bank (if disputing a charge is an option where you live)?

stedman1 wrote:

gajendrasinh128 wrote:

Then what should I do for the device now?

What do you mean, what should you do? What is the issue? Why do you think the letter D is an issue, or for that matter, any letter?

The OP seems to be uncertain whether they received a genuine iPhone, or a counterfeit device: "I have purched [sic] this device from Flipkart ..the genuine device has been received or not genuine."

gajendrasinh128 wrote:

Yes my question is only that I received genuine device or not.?

We have no way of knowing.

And if this is not genuine then what should I do?

That’s up to you. It’s a bit late to ask if you’ve been ripped off after you’ve been ripped off…

gajendrasinh128 wrote:

Then what should I do for the device now?

What do you mean, what should you do? What is the issue? Why do you think the letter D is an issue, or for that matter, any letter?

It’s a bit late for them to be asking after the purchase…

KiltedTim wrote:

It’s a bit late for them to be asking after the purchase…

I agree!