A government order unveiled Friday that bars non-natives from representing India could deny Prakash Amritraj a place on India's Davis Cup squad.
The sports ministry release said: "Players who are Indian citizens only can avail themselves of government assistance to represent the country in the national teams representing the country."
It effectively rules out Amritraj, 25, a US citizen who was born in Encino, California, from starting a sixth year on India's Davis Cup team in 2009 or playing for the country in the Olympics or the Asian Games.
The 210-ranked Amritraj, whose father Vijay was one of India's most popular tennis stars, last played for the country in the Davis Cup world group play-off against Romania in Bucharest in September.
India lost the tie 1-4 and will continue in the Asia-Oceania Zone group 1 rounds next year.
Three women tennis players, Sunitha Rao, Shikha Uberoi and her sister Neha, will also be barred from representing India since they are all US citizens.