Selected Writings in English include: • 1999
Prakṛti in Sāṃkhya-Yoga: Material Principle, Religious Experience, Ethical Implications. New York: Peter Lang • 2004
South Asians in the diaspora: histories and religious traditions. (with P. Pratap Kumar). Leiden: Brill. • 2005
Theory and Practice of Yoga: Essays in Honour of Gerald James Larson. Leiden: Brill. • 2008
Kapila: Founder of Sāṃkhya and Avatāra of Viṣṇu. New Delhi:
Munshiram Manoharlal. • 2008
South Asian Religions on Display: Religious Processions in South Asia and in the Diaspora. London: Routledge. • 2008
South Asian Christian Diaspora: Invisible Diaspora in Europe and North America. (with Selva J. Raj). Farnham: Ashgate. • 2009
Modern Indian Culture and Society. 4 vols. London: Routledge. • 2009 ''Brill's Encyclopedia of Hinduism. Volume One: Regions, Pilgrimage, Deities''. Leiden: Brill 2009. • 2010 ''Brill's Encyclopedia of Hinduism. Volume Two: Sacred Languages, Ritual Traditions, Arts, Concepts''. Leiden: Brill. • 2011
Sikhs in Europe: Migration, Identity and Transnational Practices. (with Kristina Myrvold). Farnham: Ashgate. • 2011 ''Brill's Encyclopedia of Hinduism. Volume Three: Society, Religious Professionals, Religious Communities, Philosophies''. Leiden: Brill. • 2012
Yoga Powers: Extraordinary Capacities Attained Through Meditation and Concentration. Leiden: Brill. • 2012 ''Brill's Encyclopedia of Hinduism. Volume Four. Historical Perspectives, Poets/Teachers/Saints, Relation to Other Religions and Traditions, Hinduism and Contemporary Issues''. Leiden: Brill. • 2012
Sikhs Across Borders. (with Kristina Myrvold). London: Bloomsbury. • 2013
Pilgrimage in the Hindu Tradition: Salvific Space. Abingdon: Routledge. • 2013 ''Brill's Encyclopedia of Hinduism. Volume Five: Symbolism, Diaspora, Modern Groups and Teachers''. Leiden: Brill. • 2015 ''Brill's Encyclopedia of Hinduism. Volume Six: Indices''. Leiden: Brill. • 2015
Objects of Worship in South Asian Religions (co-edited with Mikael Aktor og Kristina Myrvold). Abingdon: Routledge. • 2015
Young Sikhs in a Global World. (with Kristina Myrvold). Farnham: Ashgate. • 2016
Routledge Handbook of Contemporary India. Abingdon: Routledge. ==References==