air travel – should i pay any extra tax in airport if i bring newly built COMPUTER in check-in luggage?

May question may be duplicate, but what I’m looking here is a clear answers and explanation.

So, yeah. Due to high shortage and demands on graphic cards, I plan to build my custom pc completely in US(, and would ask my relatives to bring it down to India(Chennai). So here what’s my doubt is, the total cost of unit around 900$, which includes processor, motherboard, GPU, HDD, SSD, PSU, cooling system etc.

I know there is lot of global and trusted shipping companies are there. but shipping itself cost so much.

  1. need to pay any extra taxes?

  2. in Airport, do they ask any documents like P.O or any other

Kindly, add your valuable advice or alternative approaches.

Kindly help me to understand