A picture of the 35-year-old joining the club was posted on the Chennai-based team’s official X handle.
“RaJa here to conquer,” CSK wrote on X.
In IPL, Jadeja has played 226 matches and 173 innings, in which he scored 2692 runs at a strike rate of 128.62.
Jadeja is the seventh-highest wicket-taker in the IPL with 152 scalps.
CSK’s preparatory camp began on March 2, with the likes of Ruturaj Gaikwad, Rajvardhan Hangargekar, Mukesh Choudhary and Prashant Solanki joining the camp at Chepauk.
CSK will kick off their campaign against Royal Challengers Bangalore in the first game of the IPL 2024, at Chepauk, on March 22.
CSK Squad: MS Dhoni (C), Moeen Ali, Deepak Chahar, Tushar Deshpande, Shivam Dube, Ruturaj Gaikwad, Rajvardhan Hangargekar, Ravindra Jadeja, Ajay Mandal, Mukesh Choudhary, Matheesha Pathirana, Ajinkya Rahane, Shaik Rasheed, Mitchell Santner, Simarjeet Singh, Nishant Sindhu, Prashant Solanki, Maheesh Theekshana, Rachin Ravindra, Shardul Thakur, Daryl Mitchell, Sameer Rizvi, Mustafizur Rahman, Avanish Rao Aravelly
(With ANI inputs)