Hi
There doesnt seem to be any fully dedicated sites just to naked south asian men but they do appear on free general search sites Im currently dating a sri lankan guy and will attach a couple of pics of him. Some sites worth checking out are:-
www.hunkhunter.com click the directory and then click international or ethnic the site links to both pay sites and free pics sites those not displaying an AVS logo. There are some free images of Indian guys on there.
Also try
www.gaydemon.com similar to above has listings for ethnic guys indian arab etc.
Another site
www.whoregays.com has some great pics of French Arabs Arabs and Latinos's
A site I love but non-nude some topless is a site called
www.kabaddi.org its a site about kabaddi which is a sort of tag wrestling/rugby type of sport palyed in South Asia it features photo galleries of Pakistani, Indian, Sri Lanka, and Bangladeshi in sports kit and topless and the men are horny.
Anyway hope thats ok heres some pics of the Sri Lankan guy im dating.