The Aqua 4X, which comes with a 4-inch display and is powered by Google's operating system Android, has a 3G dual SIM card feature, it said in a statement.
The phone offers users a memory space of 512 MB with an additional storage capacity of 256 MB to enable saving favourite apps and documents, it said, without making any mention of an external storage slot generally found in phones.
The phone has a 1,300 mAh battery, a two mega pixel camera at the back and a VGA camera at the front, it said.
"The Aqua 4X will be the lowest priced 3G phone in a 4 inch category, making it a pertinent phone for consumers across all age groups," Intex's business head for mobiles, Sanjay Kumar Kalirona, said.
The phone will be sold under an exclusive tie-up with eBay and the online retailer will be shipping it free across the country, it said.