Hi Raj,
There is definitely a concept of Floating Leaves. I know this for sure because we have one in our company as well. Well, I shall explain that to you in detail.
We have 10 fixed official holidays in a calendar year. These fixed holidays include days like Gandhi Jayanti, Independence Day, Republic Day, Diwali, etc. All companies are mostly not allowed to give more than 10 fixed holidays per year. However, this list of fixed holidays sometimes covers religious fests/days like Onam, Pongal, Janmashtami, Rakhi, etc. As these days are particularly significant to only a particular set of people belonging to particular religions, all employees may not want to take leave on those days. Moreover, they feel it's a waste and that they could easily take a day off for another day instead.
Thus, comes in the concept of Floating Leave/Holiday.
Now, in this case, we reduce the fixed holidays and make them 9 days from 10 days. We then prepare another list of 8-9 religious days/festivals as optional leaves. Apart from the 9 fixed holidays, an employee is free to select one holiday (as per his religious importance) from the list of Floating Leaves. Then the 9 fixed days + 1 day of his floating leave would finally leave him with a total of 10 holidays per year.
However, the floating holidays are not related to any other kind of leave. They are purely different from privilege leave, study leave, celebration leave, etc.
That's about it!
If you need further help regarding the same, feel free to revert.
Thanks,
Ishita