Can 6 months cooling off period in mutual divorce be waive

Sir, my marriage was solemnized in 2004, and my wife filed various cases including 498a, sec 9 etc. Now she is ready to mutual divorce. Her advocate told that 6 months cooling off period can be waive off by giving reason that both Ard living separately from last 10 years. Is it possible. And one more question is that she will change her evidence in 498a case and then can iIwill be acqutal. I want clear cut acqutal. Pl. Suggest. Regards, sec 9 is in maharashtra and 498a in rajasthan Regards.