For apply student permit in New Zealand, a candidate have enough money to pay for living expenses, education costs and travel for your entire stay in New Zealand.
Offer letter: The New Zealand Qualifications Authority (NZQA) offer letter to international students, which lists minimum course duration, course fees and whether the fees are applicable at domestic or foreign rates.
A written document from an institution or person that states that the student has suitable accommodation arranged in New Zealand.
A Medical Certificate from stated hospitals authorised by NZQA.
Proof of English: IELTS/TOEFL/PTE