Unadkat will likely be accessible for choice for the video games in opposition to Durham, Leicestershire and Derbyshire.
Sussex need to safe promotion to the primary division.
Unadkat, 31, has performed four Assessments, Eight ODIs and 10 T20I matches for India and was lately a part of the Take a look at aspect that toured the West Indies.
“I’m excited to affix Sussex for his or her Championship video games in September. The English County Championship has a beautiful legacy, and I used to be eager to seize the chance each time I can and it appears to be the suitable time for me at this level in my profession,” Unadkat stated in a launch.
“His document is excellent, and we will likely be searching for Jaydev to share his expertise with our creating workforce. Everybody at Hove is trying ahead to Jaydev being a part of this Championship run in and assist the workforce to take wickets and win video games of cricket,” Sussex head coach, Paul Farbrace stated.
Unadkat has taken 382 first-class wickets in 103 appearances, at a mean of 22.5 and with finest bowling figures of 8-39.
