The Glory of Rudram
Sri Rudram is treated as the celebrated portion of Yajurveda with the sacred Siva Panchakshari mantra (Namasivaya) enshrined within it.

It has two portions called Namakkam and Chamakkam . Each contains eleven chapters, or Anuvakams. Most of the chapters in the first portion end with the letter Namaha or namo Namaha , while the ending letter of the second portion is "cha me".

It is firmly believed that every deity is pleased with Rudra japam, and it is also believed that by chanting it, whatever may be the genuine prayers of the devotee, will be granted. Rudra japa is spoken of as a great purifier and it is the most effective expiation (pariharam or remedy) for even the worst sins.

In summary, Rudra japam is the best sadhana (ritual) for attaining both material and spiritual benefits from the Almighty...
Rudram means Dukham-eliminator, paapam-eliminator. The word 'Rudram' is derived from two words - 'Rud' and 'Ra'. 'Rud' means dukham (sorrow) or paapam (sin, demerit). 'Rud' also means the cause of dukham or paapam. What is the cause of sorrow or sin? It is agnyanam (ignorance). 'Ra' means eliminator. Lord Siva gets the name Rudra because he removes sorrow and sin and also the cause of it, which is ignorance.