I have tried to list out all Indian Navy ship projects. Delhi class is an outcome of Project-15 for example. Accordingly, some commentators refer to Delhi class as Type-15 destroyer. I am curious to know, if there are projects which did not fructify, say never left the design board (say a project-26 and project-27). Is there any literature or drawings known for the same? Program Name Class Project-15 - Delhi Class Project-15A - Kolkata Class Project-15B - Vishakapatnam Class Project-17 - Shivalik Class Project-17A ? Project-16A - Brahmaputra Class Project-16 - Godavari Class Project-28 - Kamorta Class Project-28A ? Project-25 - Khukri Class Project-25A - Kora Class Project-71 - Vikrant Class Project-75 - Scorpene Project-75I ? Additions and corrections welcome.