Indian antelope, ailing, running wild (6)

I believe the answer is:

nilgai

I'm a little stuck... Click here to teach me more about this clue!

'indian antelope' is the definition.
'nilgai' can be an answer for 'antelope' (nilgai is a kind of antelope). I am unsure of the 'indian' bit.

'ailing running wild' is the wordplay.
'running wild' indicates anagramming the letters.
'ailing' anagrammed gives 'NILGAI'.

Can you help me to learn more?

(Other definitions for nilgai that I've seen before include "animal" , "Large Indian antelope, ailing (anag.)" , "creature" .)

I've seen this clue in The Hindu.

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