The three new devices- Star, Star HD and Star Power will be available from September 29 onwards priced at Rs 6,990, Rs 7,490 and Rs 8,690 respectively.

"The devices not only offer a longer battery life but also features like USB OTG and clicking selfies through the back camera by using the volume button on the phone. These are interesting features that will appeal to users," Intex Technologies Business Head Mobile Sanjay Kumar Kalirona told reporters here.

In the next one month, the three models cumulatively should sell one lakh units, he added.

The dual-SIM handsets run on the latest Android KitKat operating system and are powered by 1.3 Ghz quad core processor and have 1GB RAM.

The Star features a five-inch display, 8MP auto-focus rear and 2MP front camera, 8GB memory (expandable to 32GB) and 2,000 mAh battery.

The Star Power features a 4.5-inch screen and a 3,000 mAh battery, while the Star HD sports a five-inch screen with 13MP rear and 5MP front camera and 1,800 mAh battery.

"Star Power and Star HD support USB OTG, means customers can connect keyboard and mouse for using on the smartphone. These are some features that will help us differentiate our products from competitors apart from the aggressive pricing that we offer," he said.

Kalirona added that Intex will phase off its i5 range of smartphones over the next few months as the firm expands its smartphone portfolio.

During the April-June 2014 quarter in India, the fastest growing smartphone market in Asia Pacific, smartphone shipment grew 84 percent to 18.42 million units from 10.02 million units (in April-June 2013 quarter), research firm IDC said.

Korean handset maker Samsung still continues to lead the smartphone market with 29 percent share, followed by Micromax 18 percent, Karbonn 8 percent and Lava six percent.