186 & 189 are the offenses related to obstruction in the duties of a public servant and threat of injury to a public servant, respectively.
353 is assualt on a public servant to deter him/her from discharging the functions of such servant.
506 is Criminal Intimidation, 34 being Common Intention.
Here, as your post suggests, the case is falsely filed while you were only trying to inquire around as to the identity of this SDM who showed up and questioned your Father, which is a matter of right. Further, in my opinion, if there's a complaint of 353, there should be a medical examination report proving the same too, which won't be there and you can file a complaint with the District Magistrate regarding this issue and filing of the false case against you and your father.
However, I would also reccomend you to consult a capable legal counsel to guide you through the process and help you in whatever situation arises in this entire matter.