Most of the people will use Teak for the Main door.
Teak door will give asthatic look for your house. Teak wood will not be affected by environment. But for two/three years you may need to do polishing for the door if it is exposed to sun other wise not required
Main door may cost around Rs ~ 30000
Teak Door designs:
Below peacock design is there in half of the door.
Other door designs