Tata Docomo has unveiled a plan that charges on a pay-per-character basis. The cost of each character would be only one-paise-per character. There is 100 paise per rupee and an Indian rupee is the equivalent of 2 U.S. cents. The plan is called Diet-SMS. ?The cost of any Diet-SMS will be only one paise per character used, thereby providing complete value to customers,? stated Tata Docomo in a press release. The spaces in between words will not be charged.