Reliance Landline — NO BACKUP DURING POWER CUTS

there is no backup as they dont have battery in thier DP box and even phone goes dead immediately when there is power cuts , i had sent no. of complaints to customer care and even met personally to executives at MALL ROAD(LUDHIANA) for almost 8-9 months has already been passed but still no action has been taken, so i have decided to go to consumer court as this is the worst harrasment shown by private company to settle grieviances of customers