Samsung Galaxy j7 is a good phone but There are far better options currently available in the market for same price or for even less. Some of the options are
1 redmi note 3
2 Letv 1s
3 lenovo k3 note
These are some of the popular phones currently available in the market for much lesser price but offer far better specs when compared to Samsung j7.
The only thing working in favor for Samsung in this price range is its brand value among Indian consumers which it built by selling its flagship smartphones.
I would highly request consumers to check above mentioned options before going for Samsung Galaxy j7