The better technology you employ, by definition, the lesser number of people you need for a given output.The answer is not to employ more people in agriculture, its to provide them employment elsewhere, that is in manufacturing.Its not ignoring agriculture, its being sensible enough to optimize the human resources. Currently, the agriculture sector wastes India's human resources by under-employing them.
No is asking all to move to Delhi, its about setting up industrial areas where none exist now.