CESC (Calcutta Electric Supply Corporation) — excessive bill

sir, with reference to consumer no.[protected], like to state that my bill for the month of june'14-Rs.2100 &april'14 -1170 which is too exessive compared with privous bills which were ranging from Rs.550 to680, but i am astonished to see the bills of june &april, though the consumstion is same.I have deposited the said amonts, kindely look into the matter seriosly and adjust the amont in the next bills, my meter is out of premiese, done by your people but it is not safe .There is theft of elecricity from the metre box fixed to poll no.35/4, 35/3 and other boxes in our locality, kindly enquire in to the matter and take strigent steps to prevent the theft.