The Domo Slate X15 is equipped with 1.5GHz dual core processor and sports a 7-inches display. It has 512 MB RAM and also 4GB ROM, that is further expandable (up to 32GB). It packs 3-megapixels rear-facing camera and also a 2-megapixels front-facing camera for selfies.
The tablet has WiFi and GPS, but there is no SIM slot. You can use 3G internet via external dongle or through WiFi. It runs on Android 4.2.2 Jelly Bean OS.
Clearly speaking, within Rs 3000 you can not except a 3.5-inches phone also, but you are getting a tablet with a good configuration. In my opinion, it is too good under Rs 3000.