The launch of the Agni-III missile took place from Wheeler Island, 180 kilometres north-east of Bhubaneswar, capital of the eastern state of Orissa.
Sounds more like the aircraft were turned back (reports of two being turned back) due to the un-notified "incursion" of the airspace, and a reporter has simply taken the intial description of the launch ("leaving behind a thick column of white and yellow smoke", the Press Trust of India news agency reported) and combined that into the turnback story.