Diploma courses offered by PNS which are equivalent to polytechnic Diploma are approved by the Government, UPSC and PSC of various state governments 
Poly diploma is a course of 3 years duration in engineering. The courses offered in PNS can be said to be  equivalent to courses offered in Polytechnics in India. The courses are designed in such a way that the students are able to perform basic engineering tasks. The diploma holders in engineering are generally employed as supervisors or junior engineers in the companies. The minimum qualification for admission to poly diploma of PNS college is pass in SSLC (Standard Tenth). The registration and  examination for this course is done by the Institution of Electronics and Telecommunication Engineers, India, Institution of Mechanical Engineers, India .
PNS conducts Diploma classes in the following branches of Engineering:
1. Automobile Engineering
2. Mechanical Engineering
3. Production Engineering
4. Electronics & Telecommunication Engineering
5. Computer Science & Engineering.