Step 1: Recall what each committee actually did.
The Chadah Committee (1963) recommended that basic health workers doing malaria surveillance also take up family planning duties. This matches List II item 1.
Step 2: Match the Jungalwalla Committee.
The Jungalwalla Committee (1967) is formally called the Committee on Integration of Health Services. Its core recommendation was a unified cadre of health staff and integration of preventive and curative services from the top level down to the field level. This matches List II item 2.
Step 3: Match the Kartar Singh Committee.
The Kartar Singh Committee (1973) reviewed the many single-purpose field workers running separate national programmes and recommended merging them into one cadre, the multipurpose health worker. This matches List II item 4.
Step 4: Match the Shrivastav Committee.
The Shrivastav Committee (1975) recommended training village level community health volunteers, who came to be called Health Guides, alongside strengthening the multipurpose worker scheme. This matches List II item 3.
Step 5: Final Answer.
Putting it together: A-3, B-1, C-4, D-2. The printed answer key attached to this compiled paper marks a different code as correct, but that combination does not fit the well documented mandate of each committee, in particular the Jungalwalla Committee's mandate is literally integration of services, so it cannot be paired with Health Guides. The combination A-3, B-1, C-4, D-2 is the one consistent with the actual history of these committees.