Generally attendance notices are sent by Investigating Officers to an accused in a case. The case may or may not have been registered i.e. the complainant files the complaint and in return the police station provides a diary entry number that is generally reffered to as B. Once the complaint is confirmed after investigation, the diary entry is changed into FIR and called as A. So once a case (suppose) is registered as 39/B, the same will be registered as 39/A as a FIR.
Also, the notices are sent on a pre-formatted printed govt. paper which is sent under S.160 CrPC. If you have received a hand-written notice, locate the text that says "under S. 160 CrPC". However, it doesn't matter if it is on a pre-formatted printed paper or just simple hand-written notice, it is to be taken seriously.
The sections mentioned by you relate to Cheating & conspiracy. So there must be other people also involved in your case.
In your case, you should first check and send some reliable person, preferably a lawyer to check what is the case all about and try to fetch copy of the complaint. Then take action accordingly!
If you walk into the police station just like that, you are inviting trouble. The I/O might even arrest you there and then.
//peace
/Saurabh..V