Solution:A. Ambakheri (U.P.): IV. Ochre Coloured Pottery Culture: Ambakheri yielded typical OCP pottery, linked to the Copper Hoard Culture in the Ganga-Yamuna Doab, dating to the late Harappan and early Iron Age.
В. Bahaal (Maharashtra): I. Northern Black Polished Ware Culture: Finds of NBPW pottery at Bahaal mark the Iron Age and early historic phase, showing the spread of this culture beyond the Ganga valley.
C. Farmana (Haryana): II. Pre-Harappan Culture: Farmana revealed Early/PreHarappan (Hakra Ware) remains, representing the proto-urban phase before the Mature Harappan civilization.
D. Lakhiopir (Sindh, Pakistan): III. Painted Grey Ware Culture: Lakhiopir is associated with PGW pottery, characteristic of the early Iron Age and often linked with the Vedic period.
The correct match is 4: A-IV, B-I, C-II, D-III.