@Chandrasekar_C, one suggestion I would give is to get an 8 inch if you can afford the extra cash.
I own a GSO 8 inch professional dob but I have also used SkyWatcher’s 6 and 8 inch versions over the last few years. From my experience, GSO’s mount is smoother compared to the SkyWatcher. However, the focusser in the professional version(the dual speed Crayford focuser) doesn’t really work that well. When heavy eyepieces are used, it doesn’t move smoothly and the focuser draw tube drops down due to the weight. If I have one complaint with my telescope, it has to be the focusser. It annoys me so much that I tend to just use my own hand to move the eyepiece as needed. Other than that, I have had no issues with the scope over the last 6+ years. The optics are good and the scope itself has tolerated a lot of harsh road trips.
They might have improved the focusser over the recent years. Maybe @Venkatesh_Rajamani can share his experience with the focusser on his scope.
Please note that the GSO normal version comes with a different mount and I am not sure how it is compared to other scopes.