What are the identity proof rquired to travel in Westbengal i.e Kolkota an Malda.I have only PAN card and no?

What are the identity proof rquired to travel in Westbengal i.e Kolkota an Malda.I have only PAN card and no Voter Id card.Will the pan card card be sufficint for me to travel or I will be in ruble.I alo want to go to the Indo-Bangladesh Border/Churiya anantpur village