I Have Bought A New iPhone5 But Its Mic Is not working

Question

Sir/madam,
I had Purchased a iPhone 5,Black Colour,  from HONGKONG with Serial #DN*******TWD, ON 19/1/2013, AS A PACKED PIECE. I had reached India/Chennai on 22nd Jan 2013 and had opened for use, to my dismay found that the MICROPHONE was not working, it works on handsfree but not on normal use.
I had immediately contacted Apple India support center, and had given them all my details and they tried fixing it by RESET mode and all troubleshooting methods but the MIC did not work. When I had asked them to REPLACE the defective iPhone 5, they categorically refused to support as this set was not purchased in India, hence they would not replace it here, the support center staff were very unprofessional and even their technical head was very arrogant. This is not what I had expected from Apple Support. I am using Apple products such as , iPad, iPhone 4S, MacBook Air, and iTouch 5, had not experienced any defect as of date. My purchased were from NY/USA, SAUDIARABIA, UAE. But this defective Iphone5 has given me a tough time with Apple India Support.
As I know that Apple products are deteft free, but whenever any defect arised a replacement would be provided while under WARRANTY. My iPhone 5 is just a few days old, and has International Warranty, which I had confirmed, while purchasing in HONGKONG. 
I WANT THIS DEFECTIVE PHONE BE REPLACED IMMEDIATELY AS THIS HAS CAUSED ME MENTAL AGONY, WASTE OF TIME, ENERGY, AND ALL THIS AFTER PAYING A BIG SUM IN DOLLARS.
i AM LOCATED IN CHENNAI, Tamilnadu, India,
Aman Shah
I URGE  Apple CA/USA, HK for any Apple Store to arrange for an immediate replacement ASAP.
I expect the concerned authorities in Apple SUPPORT Worldwide to look into the ARROGANT, DISRESPECTFUL ATTITUDE and Very Unprofessional manner in handling Clients like us, who have been an Ardent APPLE Product Consumer form its inception.
If needed  can give you the serial nos of all my products in use.
Reply awaited to resolve this matter at the earliest.
Thanking you,
Aman Shah
Chennai, India.
<Personal Information Edited by Host>

Answer 1

The warranty on the iPhone has never been international.  Read it. You'll see that for yourself.
Take it back to the country where you purchased it if you want it replaced under warranty.
By the way, you're not talking to Apple. Posting personal information in a public forum is NOT smart.