The reason behind Prime Minister Modi's skipping the meeting is yet to be ascertained. 

The other Quad leaders -- Australian Prime Minister Scott Morrison and Japanese Prime Minister Yoshihide Suga -- are expected to attend the event.

The meeting with the US vice president comes after the much-anticipated first in-person meeting of the Quadrilateral Security Dialogue (Quad - India, the United States, Australia and Japan) was held on Friday. The meeting was hosted by US President Joe Biden.