* Veda / Vedic ritual / Samaveda / Jaiminiya Samaveda texts and rituals / Purva-Mimamsa
* South Asian religions / Hinduism / Saiva and Sakta tradition / Goddess Durga
* South India / Kerala / Tamil Nadu / Karnataka
* Sanskrit / Malayalam / Kannada / Tamil / Prehistory of Indian languages
* Prehistoric archaeology of South Asia and (in broad sense) Central Asia / Coming of the Aryans

Two significant contributions of Parpola, to the field of decipherment of the Indus script, are the creation of the now universally used