Micromax Informatics — No proper response and untimely delivery of products

I have given a brand new tab, which is hardly used for a repair as there was a power problem in the tab. Its almost more than 2.5 months, i haven for repair, still they say that it would take another 20 - 25 days for repair. I have given this tab at Sri Sai Telecommunications (Malleswaram, Bangalore). The people are so irresponsible that they are rude in answering and dont give any specific date of returning my product. If the company takes 3 to 4 months for repairing, then wats the use of buying the mobile/tab of micromax which is of so low quality and poor in providing service to the customers. I have contacted even Mr.Shivanth(GM), even he is giving false promises.
Such a pathetic customer service and i strongly will never ever recommend anybody to buy micromax mobile.