Solution:(a) Gòvernment Prakrit Research Institute (III - Vaishali): This institute, located in Vaishali, Bihar, specializes in research on Prakrit language, Jain, and Buddhist studies.
(b) Abhaya (IV Charity): Abhaya means "fearlessness", and in religious teachings, it is associated with charity and protecting others.
(c) Sravanabelagola and its monuments (II-S. Settar): S. Settar was a scholar who conducted extensive research on Sravanabelagola, а major Jain pilgrimage site.
(d) Vegetarianism (I - Non-violence): Jainism, Buddhism, and Gandhian philosophy associate vegetarianism with non-violence (Ahimsa).
Thus, the correct matching is (a)-III, (b)-IV, (c)-II, (d)-I.