Samsung will also launch its Galaxy Gear smartwatch on September 17. Sony, meanwhile, will launch QX10 and QX100 that can be strapped onto a smartphone to turn them into a point-and-shoot camera along with Xperia Z1.

For now the prices of Xperia Z1, Note 3 and G2 are not known. But all of them are expected to cost around Rs 45,000. Sources said that G2 will cost less than Rs 45,000.

All three phones pack in the next generation hardware and have special features.

Galaxy Note 3, which is a successor to Galaxy Note 2, has a 5.7-inch SuperAMOLED screen with FullHD resolution. The Indian version of the Note 3 is likely to be powered by 1.9GHz Exynos Octa processor. It will have 3GB RAM and 32GB internal storage. The highlight of Note 3 is the multi-functional stylus that will enable a user to access some special software features on the device. It is also going to be the first Samsung phone that doesn't use a back cover made of glossy plastic. Instead, it has a cover made of leather-like material.

The highlight of Xperia Z1, which has 5-inch FullHD screen, is its 20.7 mega pixels primary camera. The camera also features optical image stabilization and is said to rival the camera in Lumia 1020 in terms of performance. Z1 also has a waterproof and dustproof design. It is powered by 2.2GHz Qualcomm Snapdragon 800 processor, which is theoretically the fastest mobile processor available at the moment. The device will come with 2GB RAM and 16GB storage.

LG G2 is the successor to Optimus G. It is powered by 2.3GHz Snapdragon 800 processor. It has a 5.2-inch screen with FullHD resolution, a 13 mega pixel camera with optical image stabilization, 2GB RAM and 16GB internal storage. The highlight of the G2 is its design and screen quality. Unlike other smartphones, G2 has the power and volume buttons placed on the back of the phone. LG claims that this makes using a large screen device like G2 a better experience.