Lenovo Mobile India — Lenovo mobile a2010 black /manufacturing defect

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Burdwan, West Bengal, 713339

D/Sir, I have purchase a lenovo mobile A2010 Black(IMEI - [protected]) from computer centre, asansol on 04/12/2015 (bill no 5178, from the next day I found that the said set has manufacturing defect like screen tech problem, then I discuss with the seller who advice us to went to Service center (Electro Service Centre, Asansol) who fail to short out the problem & said that the parts is not available in the market & he still not reaper it & hold in there. Now the question is after investing the money bearing the problem like that what a consumer can do ? kindly suggest . Regards Dharmendra Nonia [protected]