Grid connectivity does not mean only the physical linking with the state transmission system, but has to fulfill the operational and commercial needs of a power system.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/integrating-wind-generation-indian-power-system
[2] http://admin.indiaenvironmentportal.org.in/category/author/velayutham
[3] http://admin.indiaenvironmentportal.org.in/category/journal/inwind-chronicle
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy-policy
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/renewable-energy
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wind-energy
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/turbines
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/power-transmission
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india