Indian lawmakers began voting to elect a new vice president on Tuesday, more than a month after the last incumbent resigned abruptly.
Jagdeep Dhankar, whose term as vice president was to expire in 2027, resigned in July citing health reasons.
Under the constitution, federal lawmakers vote in a secret ballot to elect the vice president.
Prime Minister Narendra Modi's ruling coalition has nominated as its candidate C P Radhakrishnan, a former lawmaker from Modi's Bharatiya Janata Party and currently governor of the western state of Maharashtra.
Opposition parties have nominated B Sudershan Reddy, a former supreme court judge, as their candidate.
Radhakrishnan is widely expected to win given the support the BJP and its allies enjoy in parliament.
The vice president holds second-highest constitutional office as well as being chair of the upper house of parliament. The vice president also acts as president if there is a temporary vacancy.
The president and vice president are largely ceremonial posts as executive powers rest with the prime minister and cabinet.

Six killed in India's Mumbai as rains wreak havoc, disrupt travel
Russian attack on Kyiv kills seven, hits apartments, other buildings
Folarin Balogun to play for US after FIFA suspends red-card ban
Arab League condemns Israeli demolition of entire neighborhood in Lebanon
Venezuela quake death toll nears 3,000 as rescue effort winds down