Which death anniversary of the renowned social reformer Pandita Ramabai was observed on April 5, 2026?

Biju Patnaik was the former Chief Minister of which state, whose 29th death anniversary was observed on April 17, 2026?

Which birth anniversary of Bharat Ratna Dr. B.R. Ambedkar was celebrated on April 14, 2026?

With the objective of strengthening citizen-centric governance, from when until when was ‘Sadhana Saptah 2026’ organized, starting from April 2? 

Who has been appointed as the Chairman and Managing Director of SAIL?