Is 3K normal for a Plain high quality Shirt?

Depends on your Target audience. 3k is still comparable to the likes of Alley Soley, Rare Rabbit.

If it's high quality, sell for 7k+ Also, don't put branding on it. People who spend on gold clothing don't like to become walking billboards for some brand.

Too high. I can get Van Heusen or Louis Philippe at half price online or at full price at a company outlet. I don't think people who are aware of brands would like to even try. Parkx from Raymond is also ₹1500. Online price is ₹750-900.

Brand?

Not normal but not unheard of

What is the fabric u are using to demand such price .. without brand name only using a high quality fabric would push me pay gor such high amount

Depends on where you’re buying from.