Personally I don't agree with Marx a lot (I'm more of a Groucho Marxist and am therefore not allowed to join any club that would have me as a member), but I do have Marxist family members and know a fair amount of what it is and what it is not. India is definitely not an example of a Marxist state.
edit - Folk keep framing stuff in the economic dogma-battles of the superpowers in the 19th and 20th century, but to me the problem is 14th century economics combined with 21st century logistics. Retaining a caste system in a world of global networks can give you a fucking big pyramid and systemise abuse on an unprecedented scale with the money that flows in from those outside the structure.