Title: [Prāyadvīpīya Bhārata ke kucha koyalā evaṃ lignāiṭa besina meṃ śailastarita-vinyāsa aura pailiyo-vātāvaraṇa se sambandhita śodha-patroṃ kā eka saṅkalana]
Subjects: Coal, Geology, Lignite, Paleoecology
Places: India