Indian telco Mahanagar Telephone Nigam Ltd (MTNL) has fallen behind schedule in a number of its major network upgrade and service expansion projects, according to the Hindu Business Line. The papers says that a convergent billing solutions project, which will offer customers a single bill for mobile and fixed line telephony, and broadband services has been delayed until March 2007. Meanwhile, projects to expand the capacity of MTNL’s GSM network by 800,000 lines each in Delhi and Mumbai will now be completed by September 2006, whilst a further 800,000 new CDMA lines will not now be operational until December. The rollout of 510,000 new broadband lines is also running behind schedule. MTNL says the delays are not affecting existing subscribers.