DPT stands for Diploma in Physiotherapy, a two-year course that trains candidates to treat patients with physical limitations and injuries. Learn about the eligibility criteria, future scope, and salary expectations of DPT graduates in India. The full form of DPT is Diphtheria, pertussis (whooping cough). DPT vaccine protects against three serious diseases: diphtheria, pertussis (whooping cough), and tetanus The DPT -3 form is a return form that needs to be filed by all the companies in India. The full form of DPT is Deposit, and the form requires companies to furnish details of the deposits they have accepted from the public or members. What is Form DPT -3? Form DPT -3 is introduced by the Ministry of Corporate Affairs (MCA) to file a company’s return on deposits it has accepted during a financial year. Its primary purpose is to intimate the Registrar of Companies of all the deposits and outstanding receipts for improved transparency, depositor protection, and financial oversight.