I doubt if I fit the profile of Pankaj's intended readership, but here goes:
I think the Indian left (and Pankaj in particular) has become irrelevant. The Left parties have been decimated even in their citadel of West Bengal, where they had unleashed a reign of terror for 25 years. (If you think that is an exaggeration, you should learn more about life in Rural West Bengal). It is another matter that the TMC is continuing their tactics.
Intellectually, the left has been in shock since their utopias of Russia and China have moved on. Hence their desperate attempt to use any issue they can get their hands on: Environment, Caste etc. Their last gasp was their infiltration of the centrist Congress party via Sonia Gandhi's unconstitutional NAC.
They are terrified that Modi has put together a workable coalition of various caste groups which aims to control parliament for the foreseeable future. They don't know how to deal with Modi: he comes from the very groups that they claim to represent. But he represents a new kind of India, one which does not want handouts from elite controlled parties.