Thanks guys !
As @ mountainier said that there was no plan in advance for this trip. The only plan was to chill out on weekend. The only consideration was to plan for a location which was new and accessible during the weekend.And finally Thar was the final one.
In order to save time in morning we left KHI at 2230 hrs for Mirpurkhas. Reached Mirpur khas at almost 3.00 AM. My cousin Tahseen Kazmi who was our host in our last trip in 2009, was again co-host, as we crashed at his place in Mirpur. While we were having a cup of tea at 3.30 AM with his cousin Qamar bhia who was waiting for us to handover the keys of his place. Load shedding welcomed us and we went upstairs on roof and rested for a couple of hours under the skies full of stars.
Any how, got up early morning, got fresh and left for Umerkot, as early as possible.