www.totaltele.com — Tata DoCoMo Ltd., the GSM mobile phone joint venture between India’s Tata Group and Japan’s NTT DoCoMo Inc., Monday started services in Jharkhand, and will extend the number of areas it covers to 18 by the end of the month, an increase of seven, the Economic Times reported on its Web site Tuesday, citing Tata Teleservices’ managing director, Anil Sardana…