That doesn't take much. It is simply a high tension line from point A in India to point B in Bangladesh, and presumably will be funded by both. On the other hand, setting up grids to and in remote villages...
How Bangladesh distributes the electricity once it reaches them is upto them. I'm sure they already have the necessary grid in place.
Our slow progress in electrifying all the villages has nothing to do with electricity shortage (after all, a village doesn't use a fraction of the electricity that a city or an industry uses), but more to do with setting up the requisite infrastructure.
There is a reason that China is forcibly urbanizing its population, and moving millions of people from rural areas to urban concentrations - it is a lot easier to bring essentials like electricity, food, water etc to everybody if they live in densely populated cities, as opposed to thinly spread out countrysides.
Believe me, India would not export anything if she doesn't get money for it. We are not the USA, that we can give away things for free to earn people's goodwill.
