In today’s modern world cardiovascular disease is the most lethal one. This disease attacks
a person so instantly that it hardly gets any time to get treated with. So diagnosing patients correctly
on timely basis is the most challenging task for the medical fraternity. A wrong diagnosis by the
hospital leads to earn a bad name and loosing reputation. At the same time treatment of the said
disease is quite high and not affordable by most of the patients particularly in India. The purpose of
this paper is to develop a cost effective treatment using data mining technologies for facilitating data
base decision support system. Almost all the hospitals use some hospital management system to
manage healthcare in patients. Unfortunately most of the systems rarely use the huge clinical data
where vital information is hidden. As these systems create huge amount of data in varied forms but
this data is seldom visited and remain untapped. So, in this direction lots of efforts are required to
make intelligent decisions. The diagnosis of this disease using different features or symptoms is a
complex activity. In this paper using varied data mining technologies an attempt is made to assist in
the diagnosis of the disease in question.