, Instrument Research & Development Establishment, Dehra dun, India

• Defence Science Journal Vol. 12 No. 2A: Supplement - Research Papers
  Infra-red devices for military use
  Abstract  PDF
• Defence Science Journal Vol. 12 No. 3 - Research Papers
  A method for testing rangefinder collimator in respect of parallelism of beams in the directions of coincidence and halving.
  Abstract  PDF
• Defence Science Journal Vol. 12 No. 3 - Research Papers
  A simple non destructive method for the determination of the refractive indices of finished lenses.
  Abstract  PDF