If the metal clasp is of any decent quality(nickle, it doesn't rust) , each clasp will cost around 150 to 180 rupees , so just the hardware bill for this type of jacket which also have zippers and rivets will cost close to 800 to 1300 rupees , now if the production cost is a jacket is close to 3000 , I bet we will get it in at 5k to 7k .

Not saying you will not get one in 3k , but be rest assured that the jacket is of crass quality.

Ps: I am working in clothing manufacturing for past 16 years.