I found some of the tags which I think could be repaired or made synonyms. They are as follows:
tantrik-vidhya - black-magic (synonyms?)
sarasawati (rename it to "Saraswati")
sati-goddess (rename it to "Sati")
beef (seems like unnecessary tag)
pork (seems like unnecessary tag)
ancient-india - india - history (using history and india we can specify it as ancient india, IMO)
Let me go through them one by one:
soul - jiva - aatma - spirits - First of all we should spell the tag as atma rather than aatma, because that's the standard transliteration of the Sanskrit word. Also, atma is just the Sanskrit word for soul, so I certainly agree that we should make soul a tag synonym for the tag atma. Now I don't think we should make jiva and atma synonymous, because at a can refer to both jivatmas (the souls of humans) and Paramatma (divine soul or supersoul). So if a user is asking about the discussion if the Atman in some Upanishad, they might be referring to Paramatma. As far as spirits goes, the only question with that tag is a question asking about whether Hindus believe in ghosts, so I think it's a fairly useless tag. We might want to just remove the tag from that question, possibly replacing it with ghosts.
puja - worship - Puja and worship are definitely not synonyms. A puja is a very specific ritual used to worship the gods. Not all worship of the gods is called puja.
tantrik-vidhya - black-magic - No, these aren't synonymous. First of all, we might want to replace tantrik-vidhya with simply tantra. Second of all, tantra is neither a necessary nor sufficient condition for something to be black magic. And I'm not sure we need a black-magic in the first place; a magic would probably suffice. If we get so many questions about magic that we need to start distinguishing between light magic and black magic, then maybe we can create a tag at that point.
sati-goddess - I think the reason the tag has the word goddess is to distinguish it from Sati AKA Sahamarana, the practice of widows jumping into funeral pyres. So it may be better to keep it as is.
ancient-india - india - history - Yes, the ancient-india is probably unnecessary. If we're talking about Indian history, it's unlikely that we would be talking about how India got its Independence. Typically we'd be talking about India in the time periods described in our scriptures. The only reluctance I have about removing this tag is, what about questions about ancient India that don't involve historical scholarship, like questions about how much of ancient India King Bharata controlled according to scripture? But the india would probably suffice for that.
Actions I've carried on for this particular post.
Accepted Requests / Actions Taken
beef and pork are now synonyms of food - This solves the point 6 and 7
aatma is now renamed to atma, actually Ātman is a correct word but since thats not a general one, I will also add atman as synonym to atma - Solves point 1 [partly]
spirits is now removed and ghosts is added. - Solves point 1 [partly]
tantrik-vidya is now renamed to tantra and also, tantrik-vidya is a synonym for tantra - This partly solves point 3
ancient-india is now removed and is replaced with history. Also, ancient-india is a synonym to history - This solves point 8 [partly]
Rejected Requests / Invalid
puja and worship will be kept as separate tags as of now - This solves point 2
No change in the sati-goddess - This solves point 5
No change for black-magic - This solves point 3 [partly]
No change for india - This solves point 8 [partly]
