Below are the list of Smartphones that can easily grabbed accommodates within your budget of 5k and have the capability to send message, calls along with the Wi-Fi feature .
Nokia Asha 500-Nokia Asha 500 is a 2.8 inches Smartphone having a resolution of 240x320 pixels. The dual SIM as well as Single SIM variant of this Smartphone is available in the market. The Operating System is of Asha 1.1 and the RAM is of 64 MB Size. There is 2 MP primary camera In this Smartphone supports 2G,Wi-Fi,Bluetooth 3.0. The Smartphone doesn't support 3G services. The price of the Smartphone is Rs 3,544 on Flipkart.
Samsung Galaxy Star- This Smartphone is a 3 inches dual SIM Smartphone that has a screen resolution of 240x320 pixels. A android operating system runs the Smartphone which is powered by a 1GHz processor and 512 MB RAM. There is 4GB internal storage available in the Smartphone that can be expanded up to 32 GB. The camera of this Smartphone is of 2 MP having a LED flash and the secondary camera is not available in this Smartphone. The Smartphone supports Wi-Fi,2G, Bluetooth 4.0 . This phone is powers by a 1,200 mAh battery. The price of this Smartphone is Rs 3,790 on Amazon.
Xiaomi Redmi 1s-this Smartphone doesn't come under your price range but I'm including it in the list as it's a best Smartphone that you can buy id you can increase a little price amount. The Xiaomi Redmi 1S is a successful and best Smartphone around this price range. This Smartphone is run by a Android 4.3 jelly bean operating system and powered by a 1.6 GHz quads core Qualcomm Snapdragon 400 processor. The screen is of 4.7 inches which is best in the price range having a pixel density of 312 PPI. The primary camera is of 8 MP with a LED flash and the secondary camera is of 1.6 MP. The device offers you 8 Gb internal storage that can be expanded up to 64 GB. It supports 3G, Wi-Fi 802.11b/g/n,GPRS, EDGE, Bluetooth 4.0 and micro USB 2.0. The price of this Smartphone is INR 5999 on Infibeam.
Nokia Lumia 530 Dual SIM- This is a 4 inches IPS LCD capacitive touchscreen Smartphone which supports dual SIM. The device runs with the help of Microsoft Windows 8.1 OS which is powered by a 1.2 GHz Quad core Qulacomm Snapdragon 200 processor. The device has a 5 MP primary camera with auto focus whereas the secondary camera is missing in this Smartphone. The device gives you 4GB internal storage capacity that can be further expanded upto 64 GB using a microSD card. The device supports 3G,Wi-Fi 802.11b/g/n, Bluetooth 4.0 and USB 2.0 port. This device is powered by a 1430 mAh battery. The price of this Smartphone is 5,043 on eBay.