The company has not yet disclosed the pricing details of the Lumia 620, which is said to be the most affordable in its range of Windows Phone 8 smartphones.
The company said, the price of the Nokia Lumia 620 will be announced closer to its market availability.
The Lumia 820, on the other hand, is a cheaper, mid-range Windows Phone 8 phone. It doesn't have the special camera lenses, but it sports exchangeable backs so you can switch colours.
The Nokia Lumia 620 uses a new dual-shot color technique to deliver a variety of striking color and texture effects. With five different exchangeable shells to choose from, people can adapt the look of their Nokia Lumia 620 to their own personal taste and style.
Finally, after a long wait, Nokia has launched its new Lumia smartphones - Lumia 920, Lumia 820, and Lumia 620 - in India.
The Nokia Lumia 920 will be available to Indian consumers at a price of Rs 38,199, while the Nokia Lumia 820 is priced at Rs 27,559.
The Nokia Lumia 920 and Nokia Lumia 820 will be available in select retail stores across key cities starting Jan 11, 2013, while the Nokia Lumia 620 will start retailing in early February, 2013.
The Lumia 920 is Nokia's new flagship phone. The lenses on its camera shift to compensate for shaky hands, resulting in sharper images in low light and smoother video capture, Nokia said.
It can also be charged without being plugged in; the user just places it on a wireless charging pod.
The Lumia 920 has a 4.5-inch display, 1GB RAM, and 32 GB mass memory.
It has a 4.3-inch OLED display, 1GB RAM, and 8 GB mass memory, support for microSD cards up to 32GB.
Like the Nokia Lumia 920, the Nokia Lumia 820 also boasts the world's most sensitive touchscreen and Nokia Clear Black display technology or easy visibility in the brightest sunlight.