Defender Rafael Dumas and midfielders Richarlyson and Trindade Goncalves have penned a deal that will see them represent Zico's men this season.
21 year old defender Rafael Dumas has been loaned from Brazilian side Flamengo where he plays as a center half. Speed is his forte and he uses this to his advantage to chase and close down attackers.
Having played in the junior side of the famed Brazilian team and helping the side win the Junior Campeonato Carioca in 2015, he was promoted to the senior team where he has made one appearance so far.
Impressed by his performances in the junior league, Zico gave him the opportunity to join the Indian side to showcase his skills.
Alongside veterans like Gregory Arnolin, World Cup winner Lucio and Luciano Sobrosa, the youngster will hope to leave his mark on the tournament.
Trindade Goncalves has played a number of junior tournaments in Brazil as well. The 20 year old played in the Copa Sao Paulo de Futbol Junior against rivals Corinthians and scored a goal while also converting a penalty in the shootout to win the contest.
A defensive midfielder by trade, Trindade is adept at shielding the defensive from attacks using his speed and technique.
Richarlyson is the most decorated of the three players. Having represented the national team on two occasions, he has also won numerous domestic titles including the Brazilian league in 2006, 2007 and 2008 with Sao Paulo.
The 33 year old is a versatile player and while he plays predominantly in front of the defence, he can also slot in comfortably in the heart of the defence or at left full back.
With experience on his side, he will be an asset to Zico's team during the ISL and will help the progression of the younger Brazilians and Indian players as well.