Himesh Reshammiya, Hariharan - Kallai Mattum Kandal

ॐ नमो नारायणाय (Om namo nArAyaNAya) 





Lets take a look at ॐ नमो नारायणाय 

(Om namo nArAyaNAya) 



Actually it starts of as Om namaH nArAyaNAya but becomes Om namo nArAyaNAya after we apply the visarga sandhi rules.



Lets take a look:



As I said it starts off as ॐ  नमः  नारायणाय



 नमः the 2 dots you see after the word  नमः is known as visarga.



If the visarga (2 dots) is preceded by a अ   and followed either by a अ   or a soft consonant(in this case न is a soft consonant) the visarga(2 dots) changes into a उ and then a gUNa sandhi takes place eg:





नमः(namaH) +  नारायणाय(nArAyaNAya) 



= नम(nama) + उ (u)+नारायणाय(nArAyaNAya)



 =नमो नारायणाय(naMo nArAyaNAya)





That's the final results.



Well, I did say I ain't no preacher but there are benefits of calling out ॐ नमो नारायणाय (Om namo nArAyaNAya) at the time of distress.

It saved Gajendra from the jaws of the crocodile and also saved Ajamila from the Yama Dutas but somehow it didnt save Kamal Hassan in Dashavatar.