Idea mobile services are available in the following Circles

Maharashtra & Goa,

Delhi,
Andhra Pradesh ,
Gujarat,
Rajasthan,
Kerala,
Madhya Pradesh & Chattis Garh,
Haryana,
Uttar Pradesh (East),
Uttar Pradesh (West),
Himachal Pradesh,
Mumbai,Bihar & Jharkhand,
Punjab,
Karnataka,
Orissa,
Tamil Nadu,
Jammu & Kashmir,
Kolkata,
West Bengal,
Assam & North East