Panind — got a call from pan india which make me think that this site is fake

Today morning i got a call from a number which was showing pan india customer care on my true caller and the guy was taking all #. When i asked him where did you got my number from he disconnected the call and he was calling again and again with different number.
This made me worried as the number was from the name of pan india.
I have no idea what did this happened.
Kindly help