While Karnataka played brilliant cricket, Maharashtra have themselves to blame for.
Seamers bowl out Maharashtra for 305. 43 for no loss in reply. Robin Uthappa retiured hurt.
R Vinay Kumar, Abhimanyu Mithun and Sreenath Aravind took three wickets each for Karnataka.
Mumbai had come into the Ranji Trophy 2009-10 final with only one victory.
Punjab will hoping to avenge their loss to Karnataka earlier this season in the semi-final.
Karnataka play Punjab in the Ranji Trophy semi-final.
Uttar Pradesh are at 181 for eight in their Ranji Trophy quarter-final against Karnataka.
Uttar Pradesh need another 278 runs to beat Karnataka in the Ranji Trophy 2013-14 quarter final.
Karnataka were bowled out for 204 in their second innings by Uttar Pradesh in the Ranji Trophy.
Karnataka suffered a collapse in the second innings of the Ranji Trophy 2013-14 quarter-final.