Double Feluda
Double Feluda is a 2016 Bengali language crime thriller detective film, based on the Bengali sleuth "Feluda", created by the acclaimed and renowned "Oscar"- winning director Satyajit Ray.
Directed by his son Sandip Ray, the film marks the comeback of both Sabyasachi Chakraborty and Saheb Bhattacharya, with the former returning to the eponymous role of "Feluda" and the latter playing his sidekick.
This is a sequel of "Royal Bengal Rahashya" (2011).
The film released on 16 December 2016 to mark the 50th anniversary of the iconic creation.
Sandip Ray
Sandip Ray (born 8 September 1953) is an Indian film director and music director who mainly works in Bengali cinema.
He is the only child of the noted Bengali director Satyajit Ray and Bijoya Ray.
Dana Blankstein
Dana Blankstein- Cohen( born March 3, 1981) is the director of the Israeli Academy of Film and Television.
She is a film director, and an Israeli culture entrepreneur.
Kekuʻiapoiwa II
Kekuʻiapoiwa II was a Hawaiian chiefess and the mother of the king Kamehameha I.
Trinidad Tecson
Trinidad Perez Tecson (November 18, 1848 – January 28, 1928), known as the "Mother of Biak-na-Bato" and "Mother of Mercy", fought to gain Philippines independence.
She was given the title "Mother of Biak-na-Bato" by Gen. Emilio Aguinaldo.
She was also cited as the "Mother of the Philippine National Red Cross" for her service to her fellow Katipuneros.
Fatima bint Mubarak Al Ketbi
Fatima bint Mubarak Al Ketbi is the third wife of Sheikh Zayed bin Sultan Al Nahyan, the founder and inaugural president of United Arab Emirates, and late emir( ruler) of Abu Dhabi.
She is referred to as the mother of sheikhs and as the Mother of the UAE.
Ian Barry (director)
Ian Barry is an Australian director of film and TV.
Susan B. Nelson
Susan B. Nelson( April 13, 1927 – May 4, 2003) was an American environmental activist who is best known as the mother of the Santa Monica Mountains National Recreation Area.
Peter Levin
Peter Levin is an American director of film, television and theatre.
Minamoto no Chikako
She was the mother of Prince Morinaga.

Question: Who is the mother of the director of film Double Feluda?
Answer: Bijoya Ray