[Resolved]  Tata AIA Life — Loss amount from a closed to be repaid

I had took a tata life insurance policy back in 2010 and closed it in 2015. yesterday i got a call from aia life insurance saying they have new guidelines provided by the government saying i have 1lakh amount remaining that will tranferred to the agent and he(Ashish Saxna: [protected]) gave me all the details of the policy number, saying something about agent code and removing agent from the policy else he will get the money, then he gave me complaint number and i will receive call from gbic, then after 10min i smelled something fishy and asked for the guidelines said he will sent it to my whatsapp, Since then he havent picked my number.
Think i missed a bullet.
How did they got all the details of my policy number, isnt that a security breach