We are extremely sorry to inform you that we do not ship the products outside India. Further, we also suggest you buy it from Singapore only so that you can get the warranty for the product. Only Apple iPhone X comes with the international warranty.
Yes, iPhone 8 does have the noise cancellation.
You will get about 51-52GB as free memory in case of iPhone 8 64GB. However, this is very much dependent on the software version.
Yes, iPhone 8 does support wireless charging.
Yes, you can record 4K videos with iPhone 8.
No longer the gold standard, the iPhone 8 is still all the phone you need.