Question

what is karak? thereare how many types of karak

Answer 1

there are seven types of karak. they are---
karta
karm
karan
sampradan
aapadan
samabadhan
adhikaran

Answer 2

the one factor by which the accomplishment of the verb in that sentence is there is known as karak known as factors in english. 
karta karak
karma karak
karan karak
sampradan karak
apadan karak
sambandha karak
adhikaran karak
sambodhan karak.