Annual Return Under Bonus Act In Form 'd" - XLS Download

hi all please clarify my doubt,i.e how to calculate bonus and what is bonus formula.please explain.phani

Dear All,
Presently in our firm 500 employees are working. We are giving the bonus monthly with salary now i have a problem for calculating/preparing bonus return so there is a difficulty for analyzing where i.e. in which payment sheet he will be present, and it is time consuming so pls instruct me for this problem how it will eazy for preparing the Annula Bonus return whole (500) employee .
With Regards,

Dear all,
I Want to know that if bonus is mandatory to pay if an organisation is suffering losses from last three years. Kindly also If one has not submitted Form D on Time ,can form D be submitted later (On march & April)

Dear Sirs,
There are so many changes in Central Labour Rules. At present the RLC/DLC advised not fill Half Yearly returns for LIN seeded Establishment. Only the Annual Returns for the same. Please Which is the correct? Please clarify .

Dear all
Please tell me how many return in a year...
And date also please help me
Regards
Sanjeev singh

Dear sir
We are the labour contrator and having 20 employee, sal we nee to submitt the Form No.A,B,C,D ?