Contemporary Indian immigration to the United States--is the brain drain over?

"The post-mid-1970's picture of international migration from India...gives the impression that its 'brain drain' to the developed countries of the West, particularly the U.S.A. declined.... The impression was also consolidated by changes in the American Immigration Law wherein the emphasis had seemingly shifted from the 'occupational usefulness' of the immigrants in the American labour market to their 'family reunification.'.... The paper argues that human capital transfers through migration from India [have] not abated simply because of immigration under the 'occupational preference' categories. Rather what happened is that the brain drain has continued through alternative channels...." (SUMMARY IN FRE AND SPA)