The Vice President of India serves as the Chairman of the Rajya Sabha (Upper House of Parliament). In this role, the Vice President can preside over the proceedings of the Rajya Sabha but cannot vote during normal proceedings.
However, the Vice President can cast a deciding vote in case of a tie.
More details about this constitutional position:
The Vice President of India is the ex-officio Chairman of the Rajya Sabha
Unlike regular members of Parliament, the Chairman does not have an ordinary vote
The Vice President can only vote when there is a tie that needs to be broken (casting vote)
This arrangement ensures impartiality in conducting the proceedings of the Upper House
This is similar to the role of the Speaker in Lok Sabha, who also generally doesn't vote except in case of a tie