| 2006** ‘Instrumentation for Astronomy and Navigation in India at the Advent of the Portuguese’ in: Lotika Varadarajan (ed), Indo-Portuguese Encounters: Journeys in Science, Technology and Culture, New Delhi 2006, Volume II, pp. 505-513. |
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| 2006 ‘Mahābhārata Testimonia in the Br̥hatkathāślokasaṃgraha,’ Journal of the Sukr̥tīndra Oriental Research Institute, 7.2 (April 2006) 17-29. |
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| 2006* ‘Mathematics and Iconography in Līlāvatī 263,’ Journal of the Asiatic Society of Mumbai, 80 (2005-2006) 115-126. |
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| 2006* ‘Granthālaṃkāra,’ Brahmavidyā: Adyar Library Bulletin, 68-70 (2004-06) 271-278. |
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| 2005 ‘Foreword to Colebrooke reprint 2005’ |
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| 2004** ‘Setting up the Water Clock for Telling the Time of Marriage’ in: Charles Burnett et al (ed), Studies in the History of the Exact Sciences in Honour of David Pingree, Brill, Leiden-Boston, 2004, pp. 302-330; reprinted in: The Archaic and the Exotic, pp.147- 175. |
| 2004* ‘Broken String – Scattered Pearls: A Motif in Sanskrit Poetry and Mathematics’ in: Eugen Ciurtin (ed), The Human Body, at the Crossroads of Multiple Indian Ways of Knowing: Papers presented to Arion Roşu by his Colleagues and Friends on the Occasion of his Eightieth Birthday (Studia Asiatica V-VI 2003-2004), Bucharest-Paris, pp. 463-476. |
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| 2003* ‘Śūnya in Piṅgala’s Chandaḥsūtra’ in: A. K. Bag & S. R. Sarma (ed), The Concept of Śunya, New Delhi, pp. 126-136. |
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| 2003 ‘The Mango Motif in Sanskrit Poetry,’ Journal of the Sukr̥tīndra Oriental Research Institute, 5.1 (Oct 2003) 72-88. |
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| 2002 ‘From Yāvanī to Saṃsk  tam: Sanskrit Writings inspired by Persian Works,’ Studies in the History of Indian Thought, Kyoto, 14 (Nov 2002) 71-88. |
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| 2002* ‘Rule of Three and its Variations in India’ in: Yvonne Dold-Samplonius et al (ed), From China to Paris : 2000 Years Transmission of Mathematical Ideas, Stuttgart 2002, pp. 133-156. |
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| 2001* ‘Measuring Time with Long Syllables: Bhāskara’s Commentary on Āryabhaṭīya, Kālakriyāpāda 2,’ Indian Journal of History of Science, 36.1-2 (2001) 51-54; reprinted in: The Archaic and the Exotic, pp. 143-146. |
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| 2001** ‘Some Indo-Persian Astronomical Instruments of the early Nineteenth Century,’ Khuda Bakhsh Library Journal, No. 123 (April 2001) 1-16. |