Are you in govt.job?
If you are getting married it is not misconduct.
If you have submitted leave application it is not misconduct.
The company can draft a leave policy that provides superior benefits (but not inferior) as compared to enactments that apply to establishment e.g. Shops and Estbs Act, standing orders (certified/model)....................
These enactments shall prevail upon any private rule/policy/agreement that employer has drafted and signed with employee e.g Leave Policy/HR policy/Service Rules/appointment letter etc............
You may carefully go thru the the language of the enactments that apply.............................and the language may be like.................................'Employee is eligible for leave........................'.............................and this may suffice..............
And that employer shall supply the approval/declinature in writing within ....................days...........
The only care that you should take is that submit leave application to sanctioning authority and escalate to good offices under proepr acknowledgment................
At times the declinature may demonstare poor/non application of mind...................