Limbaiah B had come to the city three days ago and got his son, who was suffering from a health problem, admitted to a private hospital in Chaderghat area, they said.
This morning, Limbaiah went to Lower Tank Bund and gave Rs 10,000 to a temple priest asking him to put the money in a 'hundi' (offering box) and later hanged himself from the pole, Gandhi Nagar Police Station Inspector A Sanjeeva Rao said.
A case has been registered and further probe is on.