A) The security and integrity of Indian borders and internal matters are being dealt by valiant men working in security forces which come under Ministery of Home Affairs and are termed as Para-Military Forces (unlike the military forces that come under the Ministry of Defence). There are twelve paramilitary organizations. These organizations include the Coast Guard Organisation. The Defence Security Force, are subordinate to the Ministry of Defence similarly Paramilitary forces subordinate to the Ministry of Home Affairs.
Assam Rifles
Border Security Force
Indo-Tibetan Border Police
Special Frontier Force
Sashastra Seema Bal
Central Reserve Police Force
Central Industrial Security Force
National Security Guard
b) Assam Rifles is the oldest Para-military Force of India

A para-military force is similar to the Military in organization and function, but the para-military force lack the status of the Army. They are administratively separate from the Army and is assigned the dity of Inernal security, Border Protection, Law enforcement etc etc. The Central Reserve Police Force originally constituted as the Crown's representative Polive in 1939 is the pldest para-military force in India