Shri Maharaj ji, ever since He first blessed Rao Sahab (the then jamidar of Rampura Riyasat) in 1907, did a lot of public welfare work until He left His physical body in 1936. Shri Maharaj ji loved nature a lot. The plants in the Ashram could be seen weeping, whenever Shri Maharaji would travel out of the Ashram for some days. This fact has been asserted by many people who lived in the Ashram at that time.
Nobody has any clue about the age of Shri Maharajji, because the earlier life of Sh. Maharajji, except that He spent a major part of His life in austerity before He first blessed Rao sahab, is not known to anybody. Though once in Shimla, some doctors said that the type of bones Shri Maharaj ji had, belonged to the people of 16th century !
Shri Maharaj ji incorporated one 'Upper India Blind Relief Association' this association started conducting eye operations in India. Later when Shri Maharaj ji left his body, the name of the association was changed to 'Sant Parmanand Blind Relief Mission' this mission started one hospital in Delhi. Today, after seven decades of its incorporation, it stands as Sant Parmanand Hospital at shamnath marg in Delhi.
Every human-wish, resolved with full conviction & followed by hard-work, is fulfilled, this is what Shri Maharajji, besides much more, used to preach the devotees through His discourses. At the same time however, He would advice the devotees to well consider the impact of any such wish with regard to country, society & religion.
More details about Shri Maharaj Ji are available in the book The Amazing Grace.