Guys I just come to know that
![Image_ https___us.v-cdn.net_6031231_uploads_editor_0w_iu62wpxx822h.jpg Image_ https___us.v-cdn.net_6031231_uploads_editor_0w_iu62wpxx822h.jpg](/t5/image/serverpage/image-id/35598i76E256A553C4A838/image-size/large?v=v2&px=999)
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, when I click pictures using flash in a very dark space there is no presence of that line. When I focus some object far away with some light then the line appears in the picture. I just tried clicking a picture of wall in dark room using flash and I clicked a picture of a building from my balcony then the line appears in the picture. I will add the pictures just check those. Waiting for your response. Thanq ?