After a remarkable career in the insurance industry; and a short span at the Office of the Director of Public Prosecutions; Tiwari joined USP in 2014. He is the founder of Unity Insurance Brokers (Fiji) Limited (a private limited liability company) licenced by the Reserve Bank of Fiji. Unity is the sole correspondent broker for Jardine Lloyd Thompson (JLT London) in Fiji. He has an in-depth experience with local and off-shore insurers in negotiations, placements and claims. He is the ‘first and only local’ licenced insurance broker in Fiji. PK holds an Associateship of the Insurance Institute of New Zealand (AIINZ); Diploma of the Australian Insurance Institute (DPAII); and Certificate of Proficiency of the Chartered Insurance Institute, London (CCII). In 1988, he was admitted as an Associate Member of the Corporation of Insurance Brokers of New Zealand (ACIBNZ). He graduated with LLB, PDLP, LLM, and PGCTT from the University of the South Pacific.His teaching subjects include: Law and Society, Legislation, and Law of Contract I & II.

His primary research interests include: Contract Law, Commercial Law and Company Law.