Surely, this helped a lot Gyani ji. So the different pothies seem to be clubbing Gurbani together based on different criteria.

Who wrote Slok Sahiskirti ?

Also, I have read some articles about some arguments about Mundavani. What exactly is that? I am curious to know why there are different perceptions regarding Gurbani among Takhts. Forgive my ignorance please.
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/history-of-sikhism/451-punj-granthi.html
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=451

Regards.