NIEL has had an illustrious history of 40 years, the space below displays the major milestones achieved by the company.
| Event | Year |
|---|---|
| Established | 1969 |
| Distributor for Kirloskar, GE, & Reliance | 1971 |
| LT Switchgear manufacturing unit | 1980 |
| Explosion proof equipments unit | 1983 |
| Transformer assembly factory | 1989 |
| Pump & motor assembly unit | 1998 |
| Substation Solutions Division | 2004 |
| ABB System House for MV Switchgear | 2005 |
| ABB Channel Partner for Power Plant Electricals | 2006 |
| Star Export House | 2010 |