Are you sure about this? From what I gather the current ruling dispensation in India is opposite of left, and Jack Dorsey has stated in the past about Twitter having left leaning bias. [1] Might not translate to their India operations but I strongly doubt it wouldn't.
BJP, India’s right wing party, has super majority seats in parliament and looks to be the only relevant party in the foreseeable future. So I think if they want to deal with India, they’d have to deal with BJP regardless of their political leanings.
Also, This is not just a problem with Facebook India, Even Twitter India's heads have very close ties to India's ruling party.