Just like it's reasonable for America to worry about the group that conducted forced sterilization (Jim Crow racists) and worry about the slide back to them attaining power, it makes sense to do the same for socialists.
Ideologies that further concentrate power in the hands of a central state - in India's case, things like Hindutva nationalism and socialism - are risky, particularly in developing nations where liberty is less firmly-established, and should be given a stern eye when they appear.
And, just like "southern democrat" is a "bad word" in America for obvious reasons and doesn't imply "democrat from the south", "socialist" is a bit taboo in India.
Snobs come in all colors and parties. Jim Crow racists there were plenty, but the eugenics ideas and projects of the 1920s in the North were horrible in their own right.
Ideologies that further concentrate power in the hands of a central state - in India's case, things like Hindutva nationalism and socialism - are risky, particularly in developing nations where liberty is less firmly-established, and should be given a stern eye when they appear.
And, just like "southern democrat" is a "bad word" in America for obvious reasons and doesn't imply "democrat from the south", "socialist" is a bit taboo in India.