Datawind UbiSlate 7DC* is very bad tab I had ever used. It has no quality, no features and not any other thing which make it to buy.
The sound reception is very bad, the picture quality is very bad, the battery life is very low, the performance is very slow, the interface is very bad and among all it has very bad network coverage and you will not able to make call in full network area.
The customer service of the datawind is also very bad and unresponsive which makes you more irritate.
The charges and billing of the tab is high as per the features.