Mohammedan Sporting rope in Willis Plaza
The 33-year-old who began his journey with East Bengal in 2016-17, before moving to Churchill Brothers.
The Trinidad and Tobago player became the black and white brigade's second foreign signing for the I-League second division.
Football secretary Dipendu Biswas said Plaza's addition was an important one, given his penchant for scoring.
"Plaza has a proven track-record when it comes to scoring and this is an area we needed to strengthen the squad. The goals aside, he even has an eye for a quality final pass and we are looking forward to working with him," Biswas said in a statement.
Plaza was in talks with the Mohammedan Sporting after getting released by East Bengal in January 2018 but the deal did not materialise.