In which district is Gurudwara Budha Johar located?

In the following question, select the related letter from the given alternatives.
A : I : : N : ?

Which famous musician who has a good hold on Hindustani and Western music has passed away at the age of 93?

Became the fourth female wrestler to qualify for the Tokyo Olympics after Vinesh, Anshu Malik and Sonam Malik?

Interpol has launched which app to identify stolen cultural property worldwide?

Justice Geeta Mittal, former Chief Justice of Jammu and Kashmir, has been honored with which award by the International Association of Women Judges?

In the following question, select the word which cannot be formed using the letters of the given word.
BLACKSTONE

Who has been sworn in as the new Chief Minister of the Union Territory of Puducherry?