Title: Pūrvottara Bhārata ke tr̥tīya kalpīya starikī vishaya para Śilāṅga meṃ Apraila 1985 meṃ āyojita sāmuhika vicāra-vimarśa ke daurāna prastuta mukhya lekha
Subjects: Stratigraphic Geology, Congresses, Geology
Places: Northeastern India
Time periods: Tertiary