MI owner Akash Ambani said that he was delighted to have Parthiv joining the franchise.
Parthiv announced his retirement from all forms of cricket on Wednesday. Steyn and Parthiv shared the dressing room for various Indian Premier League sides.
Playing in Mahendra Singh Dhoni's era wasn't an easy job but Parthiv found motivation in his love for the game and a vision to make a state like Gujarat a domestic heavyweight.
The left-handed batsman scored nearly 1700 runs (1696) across formats with 934 runs (6 half centuries) coming in the longest format.
The first half of the tournament would be played behind closed doors and there would be no crowd as a precautionary measure against the coronavirus.
Parthiv Patel, who has played under Virat Kohli, MS Dhoni and Rohit Sharma for India, and in the Indian Premier League, explained the difference in styles of captaincy between all three.
Patel led Gujarat to the 2016 Ranji Trophy title. His last Test appearance for India was in 2018, while the last time he played an ODI for the country was way back in 2012.
Parthiv Patel said he made fun of Matthew Hayden after he was dismissed during a match and that made him lose his cool.
The 35-year-old added that he tapes the little finger to ensure it remains intact when he plays as the cut finger doesn't fit inside his keeping gloves.
Karthik, who has not played a Test since January 2010, kept wickets in the final session after Patel injured his right index finger.
Patel, who impressed with scores of 42 and 67 in the two innings at Mohali on his comeback.