Contents: I. Introduction. II. Progress of Research: 1. Headquarters. 2. Regional stations. III. Field surveys. IV. Identification and Advisory Services: 1. Identification services. 2. Advisory services. 3. Co-operation with institutes and departments in India. 4. International co-operation. V. National Zoological Collections: 1. Type specimens. 2. Material new to National Zoological Collections. 3. Other identified material. 4. Received as donation. VI. Departmental publications. VII. Zoological galleries of the Indian museum. VIII. Participation in seminars/symposia and lectures delivered. IX. Miscellaneous. Appendices: 1. Scientific and general papers published by the staff working in the Zoological Survey of India during the year 1999-2000. 2. Scientific and general papers sent for publication by the staff working in the Zoological Survey of India during the year 1999-2000.