I have a domain www.JoinTechno.com which is connected to blogger using DNS details. I want to created a sub domain for it like abc.jointechno.com on which i want to host a wordpress blog without changing the configuration of main domain hosted in blogger. Please tell me the correct procedure for this.
You could try adding a CNAME entry into your dns. Set the ip of the dns entry for abc.jointechno.com to the ip of where wordpress is hosted. I am not 100% sure if this works or not though. Good Luck.