Micromax Unite 2 A106, app installation error When I'm installing an app it show internal storage insufficient space. But the internal SD memory has lots of space, approx 5gb free.

Please give me a solution.
In micromax Unite 2 out of 8 GB internal memory only 1 GB is allotted for installing Applications. With default applications and their updates it takes around 700 MB so you must have already exhausted the allotted 1 GB for applications.

Try uninstalling some unnecessary updates or try rooting.