My husband and I are planning to visit Paris in July. We are both working in school, and during June-July there's no work. I'm confused if do we still need to get an NOC since those months are summer vacation. It would be weird to file for leave when there's actually no work. Thank you! :)
VFS Global in India appear to have made a No Objection Certificate mandatory:
No Objection certificate is required for the following categories
Children under the age of 18 needs to have it from both the parents.
In case of one parent traveling along with the child, NOC from the other parent is mandatory.
An employee working with an organization needs to have a NOC or a leave sanction details from the concerned department /office
Source is the VFS Global FAQs for an application to the Netherlands but they apply it for all Schengen and UK applications AFAIK, and probably across the board
The OP specifically asked about France, however for reference see also Is a No Objection Certificate really needed when applying for a UK visa?