As legal provisions are very clear with regards to place of supply in given situation, it is difficult to believe that supplier is charging IGST mentioning place of supply as Haryana (i.e. location of recipient i.e. ABC Associates) in bonafide manner (i.e. instead of CGST & SGST and place of supply as Punjab).
This itself gives ample reasons for Dept. to dispute subject ITC to M/s ABC Associates in given situation & resultant risk of litigation. And this can become more risky for M/s ABC Associate if it is found that M/s ABC Associate is deliberate party to the act of wrong-charging of taxes by the supplier.
To my mind, such situations should be avoided to the extent possible so as to avoid needless disputes, litigation and potential risks therefrom.
And, legal situation & potential outcome - as I believe - can be very different when it is case of bondafide interpretational issue w.r.t. Place of Supply as compared to some deliberate / forceful tax-structuring to suit the recipient.
Moreover, answering a hypothetical situation with limited facts may not be a good idea, as in actual world, Dept. can always make case to deny ITC taken in account other surrounding circumstances (specially when law is very clear w.r.t. place of supply in given case).
Hence and before I delve deeper on the legal possibilities & outcome (i.e. when Dept. tries to deny such ITC in given situation), I wish to know the followings:
As M/s ABC Associate is already registered under GST in Haryana and has taken a commercial premises on rent in Punjab, can you please explain factual reasons with corresponding legal provisions why M/s ABC Associate has not taken registration under GST in Punjab.
I am asking for this clarity as it seems & generally speaking that M/s ABC Associate is liable to get itself registered in Punjab as well in given situation. And, I do not see why such situation & potential risks therefrom - as stated in the query - really arises.