("every now and then [ritual]
activity") Nitya karma and kamya karma are the other two categories of
general ritual activity. 
Naimittika karma rituals are based on a specific cause
(naimittika); when certain conditions happen, the ritual must be performed. 
When a kid is born, for example, specific ceremonies must be
performed. 
The rite, however, is not essential until a birth has
occurred. 
 
