If u call the customer care for complaining, u dont get ringing tone.stil u r charged with minimum 8 rupees.the technician never come to u on the date on which he promise u.
Your complaints r automatically closed by customer care without attending. Totally we were fedup calling their technician & complaining to the customer care.
So my advice simply get the water from outsourcing agencies like 20 lit can for 20 rupees like that.