Conversation so far:
What is santiniketan in relation to Rabindranath Tagore?
In 1901 Rabindranath Tagore moved to Santiniketan to found an ashram with a marble-floored prayer hall—The Mandir—an experimental school, groves of trees, gardens, a library.
what happened in 1901 after Rabindranath Tagore moved to Santiniketan?
In Santiniketan, Rabindranath Tagore's wife and two of his children died.
How did Rabindranath Tagore's wife Mrinalini Devi die in 1902?
Mrinalini Devi became seriously ill. Doctors failed to diagnose her disease. A homeopathy doctor was called; that too in vain. In the night of 23 November, 1902 Mrinalini Devi died

Question: What happened after they died?
Self-contained rewrite: What happened to Tagore in Santiniketan after his wife and two of his children died?