Swami Vijnanananda (1869–1938), whose original name was Hari Prasanna Chaterjee, was an engineer and had met Paramahamsadev early in life but family commitments kept him away. In 1896, he became a monk. Swami Vivekananda entrusted him with the task of building the Math campus as also preparing suitable plans for a memorial temple for Paramahamsadev. He prepared it in consultation with a noted European architect of Kolkata and Swamiji approved of the same. However, due to the sudden demise of Swamiji and lack of funds, the project had to wait for a long time to be taken up. It was completed and dedicated by Swami Vijnananda himself on the 14th of January 1938. He was President of the Ramkrishna Mission in 1937-38. He established Ramakrishna Sevasram at Allahabad.