The Indian Registry of Pathology (IRP) was established in 1965 under the auspices of the Indian Council of Medical Research (ICMR) in New Delhi, India as a Centre for collection and distribution of teaching material in pathology. The Registry was renamed in 1980 as the National Institute of Pathology (IOP) in view of its expanded scope and activities. As per the need of the post-independence era when a large number of new medical colleges were coming up, IRP took up the initiative with the original aims and objectives of collection, classification, duplication and distribution of a representative spectrum of histopathological teaching material to several medical colleges, institutions, individual pathologists and clinicians. Further, the Registry provided a consultative machinery through the medium of consultative panels for different branches of special pathology alongwith the gradual development of a training center for pathologists, technicians, etc. The IRP also played a significant role in standardizing and propagating the technology of preservation and restoration of the natural colour to the gross specimens. Three sets of transparencies (number per set in parenthesis) have been produced, viz.: health delivery system– WHO, SEARO, New Delhi (576), TOMKIRP Rural Health Division– MOHFW (180) and Helen Keller Foundation set on Prevention of Blindness– WHO (160). Further, seven sets of transparencies are under preparation in collaboration with other institutes. These are Neuropathology- Tumors (Inst. Neurology/IP), Gastrointestinal Tract (AIIMS), Osteopathology (IP/CIO), ....