If at all any BOND has to be created it has to be created by Employer that wants an employee to sign the Bond in lieu of ..................................................say expenses it has incurred on Training.
The employer should supply an explicit and personalized communication before hand to employee stating that a BOND shall have to be signed in lieu of....................................................( training, or a business trip ) giving full option to employee to accept or reject.
Another point is that employer has the power and discretion to waive off anything and everything that is stated in rules or say................................................. personnel manual.
Moreover you have claimed it was not training, but a business trip.
The employee shall not go to employer and plead ‘Sir, Please create a bond since you are sending me to ..........................for........................ training, or a business trip.
If it was a business trip then you must have generated revenue for the employer from it. Hence there should not be BOND in lieu of it.
You are not employee of your HOD or HR.
Your HOD and HR is just another employee like you in the establishment.
An employee should submit resignation to good offices of appointing authority, MD under proper acknowledgment.
If you have submitted to your HOD (hope you have sent under proper acknowledgment) then he is duty bound to forward it to appointing authority, MD under proper acknowledgment for acceptance.................................................
Has your HOD sent it back to you each time in writing with comments in writing under proper acknowledgment from you?
You can submit resignation to good offices of appointing authority, MD under proper acknowledgment and if deemed fit at your end you can mention that in dated .........................you have already sent it to your HOD.
It is reiterated that The dispute is in front of you and is imminent.
This is the time to prepare evidence in your favor so that if you have to knock at the doors of Employee’s unions, Grievance Redressal Committee, Labor Office, Court of law you should have quality material on record.
You may approach a labor consultant/service lawyer with copies of all documents, rules, policies, and give inputs in person.
The lawyer that has seen the docs and has analyzed the inputs can advice you the best.
Let your lawyer structure all representations now................