What is the current market size of ambulance services and remote home care for elderly in India?

Question

Is there any statistics for what is the current market size of ambulance services and remote home care for elderly in India in last 3 years.

market size in terms of revenue generated by ambulance service company, and average charges for attending each accident victims.

Comments

So far I found these 2 link to derive market size data
http://www.quora.com/How-good-is-emergency-ambulance-service-in-india
http://www.medifee.com/hospitals/ambulance-service-in-bangalore/