Camponotus sericeiventris is a neotropical species and not found in India. But it actually might be a Camponotus sp., which has tons of different species. I did not found any reasonable match.
Hi, ChiefRedEarth. I found ants Camponotus mus very similar to these in my backyard. See if are the same:
http://www.projectnoah.org/spottings/23161006
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