Further details are expected to make public information linking donors to political parties over the last five years
Chief Justice JS Khehar administered the oath of office to Kovind in the presence of outgoing President Pranab Mukherjee and Prime Minister Narendra Modi in Parliament's Central Hall on Tuesday.
Immediately after the oath taking ceremony, Kovind, 71, exchanged the chair with Mukherjee to take over the top constitutional post of India - as the head of the state and supreme commander of the Indian Armed forces.
Speaker Sumitra Mahajan and outgoing Vice President M Hamid Ansari and MPs were present in the Central Hall.
Kovind, former Bihar Governor, is the second Dalit President of India after KR Narayanan.