I took GMAT online classes from Sushma Ma’am and Bhoopendra Sir few months back. Initially I was sceptical of the mode of delivery but it works very well. The classes are conducted over Skype and the instructors are quite flexible with the schedule. Classes from Sushma Ma’am were simply superb! With her years of experience, she was able to diagnose my weaknesses in minutes. With more practice, I specifically worked over those tips and saw an 11 point jump in my verbal score over my last attempt. For Quant, the classes helped in getting conceptual clarity in topics where I was struggling earlier plus there will be few tricks which can help you save some time. Highly recommend them for providing cost effective one-on-one GMAT coaching.