- 1993 – Narang Eye Institute was estiblished with Ultra Modern facility of Retina with Argon laser
- 1995 – First to start Phaco In North Delhi & added Fluorescein Angiography (FFA)
- 1996 – Started using foldable lens in Cataract Surgery
- 2004 – Brought Lasik/C Lasik Techology at NEI for the Removal of Glasses
- 2005 – First to start White Start Technology for Cataract Surgery in North Delhi
- 2008 – First 3D OCT Technology in North Delhi
- 2008 – Acquired Latest Technology for Cataract Treatment of AMO’s, FDA approved “Signature Micro Phaco System”
- 2011 – Started new center for NEI at Pitampura with State of Art Facilities & Infrastructure, brought State of the Art Micro Phaco System AMO’s, FDA approved “Signature Micro Phaco System”
- 2011 – Acquired IOL Master (precision in IOL Calculation) – best technology for Cataract Outcome
- 2013 – Signature Phaco System(Machine)
- 2015 – Green laser for (Diabetic Retinopathy and other Retinal Disease)
- 2015 – Brought Signature Pro- State of the Art Micro Phaco System AMO’s, FDA approved “Signature Micro Phaco System”
- 2015 – Microscope -700 (Zeiss)
- 2016 – Acquired Zeiss IOL Master -700 (Zeiss) (precision in IOL Calculation) – most advance technology for Cataract Outcome
- 2016 – First to start Latest Technology for Femto Laser Cataract through Catalys Precision Laser System