NZQA is unable to compare any overseas engineering qualifications not covered by the Washington and/or Sydney Accords to accredited NZ engineering programmes. The New Zealand qualifications are also accredited by IPENZ as they lead to professional rights. If your qualification were a Washington Accord recognised degree and it met the requirements of a specific New Zealand qualification (structure, content, industrial attachment as well as other factors), NZQA would be able to specify.
Your qualification is not covered by the Washington Accord. The Washington Accord recognises Indian engineering qualifications awarded by Tier 1 institutions from 2014. Your qualification meets neither of these requirements. Therefore, only IPENZ can determine if your qualification meets the academic requirements and other occupational competencies required for registration as an engineering professional within New Zealand. The other case you are referring to was completed in 2014. Since that time practice has changed regarding engineering degrees which is why your result differs. If the person you are referring to was to apply for an assessment now, he would receive the same result.