Then Indo-South African had little difficulty in beating the Spaniards 6-3 6-3 on the main court of the SDAT Tennis Stadium.
Paes has already won the Chennai Open six times with Janko Tipsarevic (2012) and Mahesh Bhupathi (2011, 2002, 1999, 1998, 1997)
Paes-Klaasen await the winner of the second semifinal between Purav Raja-Adil Shamasdin and Yen Hsun Lu-Jonathan Marray to be played tomorrow.
At the post-match on court interview, Paes was expectedly asked about his seventh title here.
Talking about his partnership with Klaasen, Paes said: "Today was just a little taste of what we can do. Yesterday was a tough match. Really happy to be in the final".
Yesterday, Paes ended up on the winning side against estranged partner Mahesh Bhupathi, who was playing his first tournament since March 2013.