 All fighting was usually suspended during the monsoon period of May to September, when movement around the country was almost impossible.Roads did not exist, nor wheeled vehicles or pack animals, until after 1766.Naduvazhis of Kerala used different titles common among them are Raja, Achhan, Karthavu, Kaimal, Thampan, Thirumalpad, Unnithan, Unnithiri, Muppil Nair etc.Historians, including Robin Jeffry, Faucett and Samuel Mateer, are of the opinion that as with all other Kings of Malabar (Kerala), the Cochin Raja (Perumpadapum Moopil) and Venadu Swarupam was also of Nair origin.