please tell me , if anyone can let me know that how to import something from horizon hobbies to india and custom duties

What do you plan to order

I am sure you can as long as it has nothing to do with Radio's.

A bunch of planes a fellow aeromodeller had ordered have gotten stuck. Even with duty being prepaid to DHL/Aramex. On the other hand another person has ordered a spektrum radio and it cleared without hassle. So it's worth a shot if you're ok with kissing that money goodbye. On the other hand rc cars pose no issue if that's what you're ordering. Planes/helis/radios are risky.