Guys sorry for the late reply, my trip got extended due to some unforeseen circumstances.
But I'm glad that Sygic worked as advertised and in some cases was pleasantly surprised at the accuracy of POI's even in remote locations.
I dunno if these are mapmyindia maps but throughout my journey I had to traverse roads varying from national highways to remote village roads and 90% of all the roads I traveled were mapped in Sygic.
GPS lock speed depends on your device ofcourse, once locked, the route calculations were almost instant, re-calculation of routes was faster too.
Adding custom POI's could have been better, all in all I'm pretty happy with the purchase.