A product of the club's Academy, the talented midfielder signed professional terms with the Saddlers in February 2016.
Born in West Brom, Sangha has been on Walsall's books since the age of eight and has played at every youth age level, from the U9s through to the U16s.
He was named Apprentice of the Season in 2015/16 and had a brief loan spell with non-league Telford last term.
Sangha made his Saddlers debut as a substitute in the 1-0 Checkatrade Trophy victory at Leicester U21s in November 2016.
He enjoyed loan spells with Rushall Olympic and Leamington during the 2017/18 season.