services of the Tata Indicom

Like to avail the services of the Tata Indicom. Presently working in Muscat/oman but belong to Dehradun ( uttaranchal). Please breif about the cities of uttaranchal where have your services.If so kindly mail the address where/whom to contact in Dehradun to get the services. will apreciate if can mail the tarrif as well. B.p.dabral