Five Posthumous Mortuary portraits, West Bengal, late 19th century

A very similar example is in the Victoria and Albert Museum, London. Topsfield discusses it as follows:
"Simple paintings of single figures of this type were the jadupatuas' most lucrative source of income and indeed earned them their name ('magic-painters'). At the news of a death in a Santal house the jadupatua would soon arrive and bring out a ready-made portrait approximating to the age and condition of the deceased. It would be complete except for the pupils of the eyes. The jadupatua told the relatives that the dead man would wander blindly in the other world until the pupils were painted in, an act known as chakshudana or bestowal of eyesight. For this service the artist would demand domestic goods or money in accordance with the family's means. (see Topsfield 1979, no.64, p.44. See also Ray 1953, p.293ff.; Archer 1977, pp.16-17).