Validity of oral summons

2 cops from a different police station in civil fress saying they are from the crime branch of a police station around 400kms away visited my parents home while I am currently aboard.

They threatened and wanted to issue summons but only to me.

They didn't disclose any detail as to what the case is even about but said this was a long pending case that they need to close after they enquire me. So they asked me to come to their town police station and I could bring a lawyer

Now per hague and Indian law summons has to be issued by proper diplomatic channels by Indian embassy.

Are my parents legally obliged to reveal my country of residence or contact details? I suspected they may be fake cops but not sure one guy showed a laminated ID but couldn't make out the details My parents gave away their aadhar and pan details I couldn't verify if they were real cops but do have one guys social media which is private.

We are waiting to see what the issue is in the first place .