I am not sure what you mean when you say cost escalation was due to remittances. Maybe you mean they wanted to remit huge profits, which then ties into greed of Enron as a company which went bust in US also due to greed factor.
It is possible, they get gas at subsidized rates and hence are managing at approx Rs3.00 per unit. But note, the fuel they wanted to use originally was Naptha and they can still not produce electricity with that fuel at reasonable costs. Naptha unit was pretty much shut..
Second part is a bit of hypothesis at this point. I don't think foreign companies will be running the plants. They will needless be importing the reactors since the third generation reactors are much quicker to setup(~4 years) and easier to maintain etc which lead to cheaper electricity. Note, when EU did a comparison some time back, they found Nuclear energy was less than oil/gas based and competitive to coal if thermal plant was not based very near to mines. Anyways, I do agree that implementation of this is something which should be watched closely by everyone.
