The group was discussing about Chola Pass and Chola Ranges and there are quite a few disbelivers but if only you know that there is a pass called " Maravar Pass" in a village called Sangam in Afghanistan. Maravar is the Pandian Clan and Sangam possibly is related to the Tamil sangam period and probably before the third and the last sangam period. Now, if you take these things into account it wouldn't be difficult to understand Chola pass and Chola Ranges.