I have resent the tablet again for the 4th time. this time, while the assurance is the same. Also what comes with it, is the in depth technical discussion with the R&D team guy who assured me about some firmware update which is in the works for battery, network selection issues etc and is expected in a month or two. However no clear date whatsoever. Also that the tablet works perfectly in chennai and some stuff regarding the Indian bandwidth distribution pattern being different in every city. Point of the whole discussion was that there are about 4 batches of tabs, one or the other batch definitely works in each of the cities, hence sending the tablet back for diagnostics may make sense, but reception quality may not be the same in all of the cities. The bluetooth will not have a2dp update as it will hamper the already weak gsm/3g reception. The chipset (name withheld) used is not that great for network reception as the stuff in phones in the 1st place. The charger design will be changed and shall be provided at request sometime later in the year/early next year as the current one gives shock at the tip, but tab is apparently safe from overcharging and voltage fluctuations as a result of the above. So use of the current charger is still recommended albeit with care. I shall keep you updated in due course.