Consumer Redressal

I BOUGHT A HCL TABLET COMPUTER ON JULY 2014, AFTER 2 TWO MONTHS ITS STARTING TO GIVE SO MANY PROBLEM , EVERY TIME I TOOK IT TO THE SERVICE CENTER THEY REPAIR IT AND GIVE ME BAKE BUT SAME PROBLEM REPEATS AGAIN AND AGAIN , SOME TIMES THE PROBLEM REPEATS JUST ONE DAY AFTER I TOOK IT BACK FROM SERVICE CENTER.SO MANY TIMES I HAVE ASK TO THE SERVICE CENTER PEOPLE WHY THE PROBLEM REPEATING , BUT CAN NOT SAY ANY THING TO ME REGARDING THIS PROBLEM.ITS BEEN SEVEN MONTH MY PROBLEM IS SAME AS BEFORE PLEASE TELL ME WHAT TO DO NOW.