Wikipedia
A manigramam is a large, influential guild of South Indian merchants. Tamil inscriptions record a tank construction by an important person and the tank is placed under the guard of the local Manigramam members.
Manigramam guild was a localized merchant body which first appeared along the Kerala coast in the ninth century A.D and gradually flourished in Tamil Nadu in the Pallava and Chola periods and then became supra-regional in character by being active in South-east Asia.
On a Sivapuri temple wall, Tiruppattur Taluk, Ramanathapuram District, an inscription records the gift of some land by a merchant of the Manigramam guild for providing an offering to the temple deity.
During the rule of the Western Chalukyas dynasty reigning over most of the western deccan, South India, between the 10th and 12th centuries merchants formed influential guilds, of which manigramam was a prominent one.