Now Kulasekarapatnam has Muslim Population as Marakkars or Marakkayars they were doing trade with Ships, they had come from Kerala, it is said Kunjali Marakkar's family members coming from kerala.
Basically there, "Thambisa" refers the name of a traditional South Indian tamil speaking Marakkayar family by name Haji Muna.Thambisa Maricar family from Karaikal of Pondicherry (now 'Puducherry') Union, a town of French India earlier.