The expected benefits of the U.S.-India nuclear deal, signed a few years ago, have so far not materialized, for reasons examined in this piece. Nicholas Burns is quoted in the article as saying the fault lies on India's side, and that seems to be accurate, inasmuch as the liability law passed by the Indian parliament deters U.S. companies from selling reactors, etc. The Japanese nuclear disaster following the tsunami has also made India understandably more wary of nuclear power.
Commenting on the linked WaPo article, a reader writes: "another bush/cheney [sic] debacle." Not really. As I wrote at the time, the U.S.-India nuclear deal was one of the very few Bush foreign policy moves that was defensible. And it may yet turn out to pay some dividends, assuming the current obstacles can be removed. (Sec. of State Clinton is now in India for talks.)