A place for Hindu pilgrims, formerly in a Sikh's house (5)

I believe the answer is:

nasik

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'a place for hindu pilgrims formerly' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'in a sikh's house' is the wordplay.
'house' says the answer is hidden in the clue (I've seen 'houses' mean this (part of the clue houses the answer)).
'NASIK' is hidden in the letters of 'in a sikhs'.

Can you help me to learn more?

(Another definition for nasik that I've seen is " Mumbai square".)

I've seen this clue in The Independent.

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