China preferred to invite sonia because Sonia is a KGB mole planted by communists in India. She was directed to mingle and then marry Rajiv. Sonia father was a communist. China is more closer to Russia being a communist than any other country.
Know history. India is still slave. Her and Rahul love for dalit and OBC is nothing but an opportunist political gimmick as she cannot stay in power just by appeasing muslims and christian who totally form 15%.
