They are very much related for sure . Language is one most SL muslims are from Tamil descent which also helps them establish links in TN .
Ramanathapuram district is literally turning into mini pakistan . TN govt and police are just acting clueless not sure when the storm is going to hit .
Lets not forget the Jihadi terror unleashed in Coimbatore in 90s. TN has very strong jihadi presence they are just waiting for time with arrival of kangladeshi and rohingya pigs they are even more dangerous now than before
It is not only Ramanathapuram but all coastal districts of Tamilnadu, Kerala, Karnataka and Gujarat are sitting on tinder box ready to explode with Jihadism. Majority of them from fishermen community ( meenpudikari in TN)
Security establishment at higher echelons know it but I doubt they are doing anything much about it. Indian Coast Guard is going to have a very tough time.
Ramanathapuram and Tuticorin have become transit points for drug trafficking as Colombo and its container hub has grown up as drug trafficking center.
Tamil Muslims are mainly along the Eastern coast around Batticaloa largely fishermen. Moors are businessmen community.
LTTE's prominent leadership and cadre were either fishermen or toddy tappers.