Vaishali and Praggnanandhaa, first brother-sister duo to become Grandmasters: What is the chess title?

Grandmaster is the highest title or ranking that a chess player can achieve. The term is about a century old, and was initially used as a generic expression to describe a player who was better than just a master.

ChessBase India - The brother-sister duo of Praggnanandhaa

Chess: R Vaishali becomes India's 84th Grandmaster; third woman to

Vaishali becomes GM, joins Praggnanandhaa to form world's first

Praggnanandhaa's sister Vaishali becomes India's third woman

R Praggnanandhaa & Vaishali Make History As Sibling Grandmasters

Vaishali and Praggnanandhaa, first brother-sister duo to become

Vaishali follows brother Prag to seal Candidates berth

Chennai's Vaishali And Praggnanandhaa Are The World's First Chess

Wunderkind Praggnanandhaa wants to dominate, not celebrate