NEW DELHI, June 1 (Reuters) - Tata Group's Air India is

in talks with Airbus and Boeing ( BA ) for a major new order

potentially including some 200 extra single-aisle planes,

topping up a mammoth 2023 deal as the flag carrier seeks to

pre-empt a growing jet shortage, industry sources said.

The order discussions, which one of the sources said could

involve hundreds of airplanes in total spread across various

sizes, expands on previously reported discussions for a further

batch of large wide-body aircraft, the sources said.

Air India, Airbus and Boeing ( BA ) did not

immediately respond to requests for comment.