Rohit , while i can understand you trying to correct the raaga name, i would request you not jump the gun. How did you conclude Mr Sengottaiyan showed disrespect to the raga names?
Mr. sengottaiyan: The raga name is NATA BHAIRAVI and not nada bhairavi. Fortunately or unfortunately, a lot of raga names are in Sanskrit (and not in Tamizh!!). Just as i would not want to spell you name as chengoddaiyan, please show some respect for the actual raga names.