Highest partnership for any wicket for the CCL-2004 season was >200 for third wicket between Mahesh Sampath and Vamshi Kyatham of DSCC vs RBCC. I do not have exact runs scored for this partnership as scorecard for this match posted on web is incomplete.
You can look at the scorecard below and decide for yourself but to me it certainly looks more than 200 runs:
This record was closely followed by 182 runs scored for 3rd wicket between Rajesh Mosur (111) and Rohit Madhok (78*) for GOLD vs OWCC. This record however, couldn't make up to the the list b/c Mahesh/Vamshi paired also scored their >200 runs for the third wicket.
Not surprisingly 6 out of 10 partnership Records were made at Louisville Rec Center ground.
I guess the most interesting partnership record is 66 runs scored for the 9th wicket between Jarrar Jaffari (57*) and Rohit Madhok (34) for GOLD vs GREEN
139 runs Pradeep Pagadala (85) and Rajesh Mosur (102*) GOLD vs RBCC on 9/11/2004 @ Louisville Rec Centre.
92 runs Sameer Sawant (71) Keyur Desai (28) GREEN vs RBCC on 6/20/2004 @ Louisville Rec Centre
About 200* Mahesh Sampath (115*) Vamshi Kyatham (105*) DSCC vs RBCC on 8/21/2004 @ Louisville Rec Centre
116 runs Mahesh Sampath (101*) and Gokul (38) DSCC vs OWCC on 8/29/2004 @ Memorial Park (Springs)
87 runs by Prakash Vasant (61*) Dan Ruparel (17*) LCC vs CSUCC on 6/6/2004 @ Cornerstone Park (lcc).
69 runs by Kit Diasabeygunawardena (74) and Ashish Janoria (31) LCC vs GREEN on 6/12/2004 @ Louisville Rec Centre
115 runs by Gokul (88) and Srikanth Srinivasan (57) DSCC vs GREEN 9/12/2004 @ Louisville Rec Centre
39 runs by Max Ali (28) Suresh Kalakrishnan (12) DSCC vs FCCC on 9/18/2004 at Boltz Field
66 runs were scored by Jarrar Jaffari (57*) and Rohit Madhok (34) in the game between GOLD and GREEN on the 5/8/2004 @ Louisville Rec Centre
34 runs were scored by Aravind Giri (7*) and Abhay Natu (25*) in the game OWCC vs FCCC on 5/22/2004 @ Memorial Park (springs)
These stats were provided by Owais Mughal for which I am very thankful to him.