The Maharaja Chamaraja Wodeyar had two sons and three daughters. The sons lived in the Mysore Palace. For the three daughters he built mansions and named them after his daughter's. The princesses used these mansions after their marriage. These mansions were magnificent and were set in a sprawling garden. They were built attractively using the best craftsmen of those days. The rooms of the mansion are elaborately craved and the gardens that surround them are carefully laid out.
Mysore's Karanji Mansion in Nazarbad Mohalla was constructed for the
second princess - Krishnajammanni. The Mansion is built using the
Indo-Sarcenic Renaissance style of architecture like the other two
mansions. It was built 1902 on an area of 38 acres and in on a small
hillock. It was built at a cost of Rs.4, 27,610 and because of its
proximity to the Karanji Lake it became popular as Karanji Mansion.
Today like most of the Royal buildings in Mysore, a modern institution
is housed in this Mansion. Since 1965 the Postal Training Institute of
the Department of Posts, Government of India, has been using the Karanji
Mansion. The Postal Department not only trains its personnel here it has
set up a museum depicting the Postal history in the country. The Postal
Department has maintained the mansion and its grounds extremely well.