It seems the Author has this perception that a higher Currency value automatically means a mightier power.
Based on this inaccurate perception his points, though well articulated, does not represents India's case well.
1USD = 150 Japanese Yen
But Japan is a 3rd or 2nd largest economy in terms of trade value.
No country can be an self-sufficient and self-reliant economy and it needs to balance well its Imports and Exports (maybe except North Korea)
The amount of FDI India has today is cause of the Service oriented work that the country has been exporting. Foreign countries are not interested in the development of our country and their FDIs are purely from self-need.
They need the massive manpower (and of course at cheap rate) so that their massive gigantic Corporations can compete well in this Free-trade World. (think China).
Ofcourse we need to carter our domestic market, but when the majority of this domestic market is lacking basic needs of life, who in the world would think they would be interested in export oriented products (IT Softwares, Laptops, Designer Textiles & Footwears, Leather garments etc)