Gautam did the star turn for Rajasthan after its rival had posted 268 for 8 riding on Siddhesh Lad's second century in the tournament.
The Rajasthan's opener knock was embellished with 16 boundaries and four sixes.
For Mumbai, Lad, who stroked an exact 100 (8x4, 4x6) and Prithvi Shaw 52 (7x4), were the main scorers.
Rajasthan's Syed Khaleel Ahmed bottled things up bagging four wickets for 35 runs in the match played at at TI Murugappa cricket ground.
The home side's third straight loss effectively ended their hopes in the tournament.
Faced with a rather daunting target of 303, Madhya Pradesh went on the attack from the start as openers Patidar and Naman Ojha unleashed an array of shots.
Patidar and Ojha added 65 runs before the latter fell to Aswin Crist for 39 (5X4, 1X6).
This brought together Patidar and Rameez Khan, who took the game away from the host with a massive 209-run partnership in 243 balls.
India Test star Ravichandran Ashwin, who has bowled with control throughout the tournament and tried his hand at leg-spin too, could not do anything to break the partnership or stem the flow of runs.
He finished with figures of none for 64 in 10 overs.
Tamil Nadu captain Vijay Shankar tried seven bowlers but the MP batsmen played confidently to coast to victory with four overs remaining.
Earlier, Tamil Nadu recovered after losing Ganga Sridhar Raju (0) in the third over and Kaushik Gandhi (7) in the seventh over with wicketkeeper-batsman N Jagadeesan (99) stringing together a 107-run stand in 120 balls with B Aparajith (43).
Vijay Shankar was his usual aggressive self and ran hard between the wickets and compiled a stylish 84 (62 balls, 7 fours, two sixes) but his exit triggered a collapse.
The team slid from 284 for 5 to end at 302 for 8 with the last five overs yielding just 20 runs.
Meanwhile, Andhra Pradesh posted a narrow one-wicket win over Goa at the M A Chidambaram stadium to draw level on 12 points with Mumbai.
Brief scores: Tamil Nadu 302 for 9 in 50 overs (N Jagadeesan 99 (108b, 11x4, 1x6), B Aparajith 43, Vijay Shankar 84 (62b, 7x4, 2x6), B Anirudh Sitaram 39, Ankit Singh Kushwah 3 for 59) lost to Madhya Pradesh 303 for 2 in 46 overs (Naman Ojha 39, Rajat Patidar 158 (111b, 20x4, 4x6s), Rameez Khan 78 not out (115b, 8x4).
Goa 188 in 47.4 overs (Sugan Kamat 28, Snehal Kauthankar 43, Suyash Prabhudessai 38, P Girinath Reddy 4 for 32) lost to Andhra 191 for 9 in 49.3 overs (K S Bharat 30, Ricky Bhui 56 not out (86b, 6x4, 1x6), Lakshay Garg 3 for 32, Vijesh Prabhudesai 3 for 43).
Points: Andhra: 4 (12); Goa: 0 (8).
Mumbai 268 for 8 in 50 overs (Prithvi Shaw 52 (54b, 7x4), Siddhesh Lad 100 (105b, 8x4, 4x6s), Syed Khaleel Ahmed 4 for 35)lost to Team Rajasthan 272 for four in 47.3 overs (Amit Gautam 149 not out (136b, 16x4, 4x6s), Mahipal Lomror 81 (77b, 7x4, 2x6), Shivam Dube (two for 36).
Disclaimer: No Business Standard Journalist was involved in creation of this content
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
