The above picture shown is thuvitha naga bantham written by sri pamban swamigal.This song is used to cure ragu, ketu dosha and kalasarpha dosha.
1.one should stop eating non vegetarian food permanently before starting this procedure.
2.Print the above picture and keep it pooja room.
3.One may start reading this song on aswini, magma, moolam, thiruvathirai, swathi and moolam stars.
4.One may start on Tuesday, karthigai or visagam star or shasti tithi in a murugan temple.
5.one has to recite the song first in murugan temples for 27 times.
6.After that one has to recitethe song 27 times dailyin home.
7..Before starting to recite the song one has to light two lamps containing castor oil, mahua oil, ghee, coconut oil, Sesame oil. The thread should be made of banana tree middle truk and cotton. Two threads should be used daily while lighting lamps. Two lamps should be lighted in this way.
You can read this article in tamil language in aanmeegachudar blog.