[5] Exploring the Gaudiya Vaishnava bhakti school along with its philosophy and practice as taught by Bhaktisiddhanta, Sardella showed it to be a personalistic current that challenged the predominantly monistic perception of Hinduism in the West.

[5] In 2010 the Donner Institute, attached to Abo Akademi University, gave Sardella's dissertation their first newly established award for "outstanding research into religion".

[5][6][7] In 2013 the dissertation was published by Oxford University Press as a monograph that Gavin Flood in his review called "a significant contribution to scholarship not only of the modern Gaudiya Vaishnava movement but also of the religious history of Bengal within the last half of the colonial period".

[8] Sardella currently serves as a postdoctorate researcher in the History of religions at the Department of Theology, and until February 1, 2014 was the director and coordinator of the Forum for South Asia Studies for the Humanities and Social Sciences at Uppsala University.

[5] He is an external expert for the Centre for the Study of Religion and Society at the Department of Sociology, Jadavpur University in Kolkata, in collaboration with Ruby Sain.