Chhetri, 24, plays for East Bengal and scored a hat-trick for India in the Asian Challenge Cup Final against Tajikistan two months ago.
He has won 34 caps since making his international debut four years ago.
Chhetri has been recommended to a number of Football League scouts by India's English born manager Bob Houghton, who led Malmo to the 1979 European Cup Final against Nottingham Forest.