The biggest supporter of reforms

Now I think it is perfectly correct to state without preamble that Indian Marxist (of various hues) are the biggest pain in unmentionables as far as reforms are concerned.
Dedicated to the cause of creating a classless society by eliminating private property and establishing dictatorship of proletariat, our comrades have assiduously resisted any attempt to deregulate the Indian economy. I believe they have made a big mistake, if they want to achieve the goal.

I like to think there is a reason for this. The underpinning principle behind Marxism was class struggle, where Marx understood class in a economic context instead of social of hereditary.

Capitalism, as analyzed by Marx, is characterized by a class struggle between proletariat (those who work for wages) and bourgeoisie (owner of capital and employer of former class). Marx proposed that the only scientific evolution of this struggle was establishment of communism through intermediate step of socialism.

However there was a catch for such kind of struggle to ensure, it was necessary that society had these two well defined classes formed, conscious of self and the conflict, which meant that other contexts or identities were subsumed in the identity of economic class.

It was Marx's opinion that presence of other identities will distract from the class struggle which would lead to establishment of class society, this Marx concluded could not be realized unless capitalist society was established and had time to merge all past identities in the now well defined "economic classes".
This was the reason he regarded capitalism as necessary step for a communist revolution.
This was also the reason he supported colonial exploitation of India by British.

1853, when Marx wrote his articles on India for the New York Daily Tribune, he hailed the British rule in India as an "unconscious tool of history." He believed it was bringing about "a fundamental revolution in the social state of Asia," which would rid that continent of the muck of all ages, however painful to its people the process might be. He hoped that English steam and free trade would, by pouring into India cheap products of the British factory industry, especially Lancashire textiles, tear apart the village communities with their "stagnating" and "passive sort of existence" which formed the solid foundation of Oriental despotism, shatter the union between agriculture and industry and their self-sufficiency and isolation, and thus blow up "their economical basis." He formulated British capital's "double mission" theory--a mission destructive as well as regenerating. According to him, it was pulling down the fabric of "old Asiatic society" and laying "the material foundations of Western society in Asia." Hope then told a flattering tale, and Marx believed that the ruin and devastation caused by British colonial rule was a terrible but necessary price for "the only social revolution ever heard of in Asia."

Now one limitation of Marx was his study was based on Industrialized western Europe, where already capitalist society had matured. However application of his theory presented difficulties in non industrialized societies such as Russia, or China, the result of which was various schools which intended to modify Marxism for the specific cases, such as Stalinism, Trotskyism or Maoism. Similar developments took place in India.

However all these advancements suffered from a serious fallacy. While Marx relied on transformation of society through altering dynamics of social interaction which was result of advancement in means of production (brought about by technological developments), the latter theories, in order to expedite the changes, appointed state as primary agent responsible transformation of society. In this they were acting contrary to Marx's assertion that "state was agent of suppression", the result was dictatorship, instead of "dictatorship of proletariat", and subsequent collapse of communism.

Indian Marxists in absence of leaders are groping in dark, and their popular influence is limited to regional pockets, for all purposes the revolution has stalled. The only hope communist now have to jettison politics of expediency and return to the path marked by Marx. Which means they should push for free trade and industrialization, until Indian society is capitalist, thus fulfilling the condition for the revolution to usher in a era of classless India.

Hence as a political group they should be the biggest supporter of economic reforms.

PS (OK, I am not really serious here, I just want to see whether I can play Devil's advocate)