Listed Companies
MTNL
Tata Tele services
Tata communications( VSNL)
Bharti Airtel
Reliance Communications
Idea
Krone Communications
ITI Ltd
Himachal Futuristic Communications
Spice
Shyam Telecom
Strlite opticals
Non Listed companies
BSNL
Vodafone Essar
Aircel