Sri Rudram (Namakam)
* From the second Anuvaka, you will find that Namo in some places of the script is chanted as Namaha. Do not get confused, this is intentionally split and chanted for learning purposes. However, while chanting the whole anuvaka, we chant Namo with the respective intonations and not Namaha.
Courtesy:- http://sssbpt.org/sri-rudram/instructions-to-user.htm