A single lead ICD, Implantable Cardioverter-Defibrillator capable
of pacing and defibrillator (I am not sure if a
pacemaker has only one function i.e. pacing)
cost me approx Rs 450000 (USD 10000) including surgery. More complicated ones could cost double. In India you can negotiate the cost with representatives of different ICD brands and get a good deal. There are many models of ICDs with different battery life. You must choose the most optimum with your cardiologist's help.