@Anjan Kumar : To begin with, please ensure that your device is up to date by heading to Settings > Software Update > Download and Install, followed by Settings > Security and privacy > Security update (Wi-Fi connection required).
Now, open the Camera app > Tap the cog in the top left > Adaptive pixel, and toggle this option on. This intelligent camera feature detects the lighting in your surroundings. If the light dims, the new Adaptive Pixel Sensor adapts and switches from 108MP high-resolution mode to 12MP high-sensitivity mode, or shoots in both modes simultaneously, combining frames to create a highly detailed and bright photo.
Let me know if this helps.
