Dear Aspirant ,
Yes ,  you can score 95% in board's if properly studied for 2 months . For this you atleast have to study 5-6 hrs a day with proper time table. You should have to complete all the syllabus in 45 days and then revise the same in next 10 days , the left 5 days are margin , if you are having queries in anything you have this days for clearing your doubts.