Samsung recently launched budget segment smartphone which is Z series.
Samsung Z2 this is price range at 4590 rupees. This is a smart phone but not Android based Smartphone and new OS introduced by Samsung which is Given 2.4. Not a Android OS.
Some specification.
4 inch TFT display this is dual SIM smartphone with 1 GB of RAM and 8GB of Rom. 5 megapixel rear camera with LED flash and 0.3 megapixel front facing camera. This is 4g device with tizen os.
1500mah battery capacity. Bluetooth 4.0 and USB 2.0. 3.5 mm audio jack. 1.5ghz Quad Core processor.
If you think to Bhaiya smartphone entry level go for it and this price range other brands offers lots of mobile with lots of functionality.