As per your enquiry I have jotted down 5 phones that have their focus on Camera and are priced below Rs.30000. I have mentioned only the camera features and not the other specifications, so that you can find them easy to choose.
1. Moto X Force
This phone is having a 21MP primary camera and 5MP front facing camera with a support of dual LED flash. It has excellent camera featues like 4x digital zoom, drag to focus and exposure, night mode, burst mode, auto HDR, panorama, video stabilization.
2. HTC One E9 Plus
This model from HTC One has a 20MP primary camera nd ultra pixel front facing camera with features like auto focus, BSI sensor, video recording.
3. Xiaomi Mi 5
The Xiaomi Mi 5 model is renowned for its high end camera functionality. The Primary camera is of 16 MP while its Secondary camera is of 4 MP. The phone has got some exclusive camera features like PF-AF with dual-tone dual-LED Flash, OIS and more.
Price: Rs. 25,000
4. OnePlus 3
Among all others , OnePlus 3 has given more power to its cameras. The phone has a Primary camera of 16 MP and tthe Secondary camera is of 8 MP with latest standard features enabled, like PDAF OIS with LED Flash and more.
Price: Rs. 27,999
5. Moto Z Play
Motorola had always given the best performance for every aspect including cameras. This particular model is having a 16 MP dual autofocus camera in its rear and 5 MP front camera with display flash. The cameras are supported with laser focus & PDAF along with the feature of color balancing and dual LED flash. It is capable for 4K video recording of 30 fps as well.