In 1989 the Company was converted to a Private Limited Company and inducted a few professional technocrats, strengthened with more qualified supervisors and licensed technicians backed by sophisticated tools, instruments, etc. With this renewed strength the Company started securing turnkey contracts directly from various Steel Plants. Power Plants, Railways, etc. The Company also started undertaking Civil & Structural work associated with electrical work.
On 23rd February, 1996 the Company was converted to a Public Limited Company U/S. 23(1) of Company Act 1956. During this period separate divisions were formed to undertake Engineering, Procurement & Construction Projects (EPC); Erection, Testing & Commissioning Projects (ETC); Testing & Commissioning Projects (T&C); Operation & Maintenance of Electrical Installations (O&M).
On 3rd May, 2013 IPPL was amalgamated with a four decade experienced civil construction company known as M/S. Nabin Designers & Constructions (P) Ltd. who are class-I constractor of CPWD and started functioning in the name of INDO NABIN PROJECTS LTD. with an intension to diversify and expand its business to to civil construction. Now, along with the power projects, also work on civil projects like Auditorium hall,Hospitals, Hotels, Multistoried and Special structure buildings, Rural roads, Bridges etc.