Here's another photograph of India's indigenously developed nuclear-powered ballistic missile submarine Arihant leaving Visakhapatnam harbour on Monday. It isn't clear who took this photograph -- it arrived from multiple sources, (including on Whatsapp) but without credit. So if anyone knows where this is from, please let me know. Clearly taken from dockyard with two tugs guiding the submarine out, two Coast Guard vessels in the background and a naval ship (frigate?) in the foreground.