Hi,
sorry, I cannot answer your question.
Just know that getting full registration as a Physio in NZ is very difficult (though managable) for Indian physiotherapists, as your degree is dissimilar to ours.
However, if you just want to come to study (and NOT work), check out the NZ Physiotherapyboard website. There is a special registration application category for postgraduate study candidates. You might be able to get in there.
The Physiotherapy Board of New Zealand > Postgraduate Registration for Overseas Qualified Physiotherapists
Hope this helps,
regards,
Fyzzio