Tata Teleservices Maharashtra Limited (TTML) is planning to invest Rs 6 billion in the current financial year to enhance and roll out networks. It intends to target Tier-B and Tier-C cities followed by rural areas. The company will also focus on the wireline segment as it offers better ARPUs vis-à-vis the wireless segment. Meanwhile, the likely merger of the three Tata telecom entities is in the news again with TTML managing director Charles Antony hinting at the possibility of a reverse merger of TTSL with TTML or a merger post-IPO. One of the key challenges in the merger process is the government stake in VSNL, which the Tatas are keen to buy.