Dear Mr. Davinder,
Your calculation is correct, but you should consider up to 3500, which is the maximum amount as per the bonus act (new amendment, of which I have no knowledge). First, you need to consider Basic & DA as 3500 or whichever is less. Based on that, we should calculate the number of days present during the month. For example: [(3500(B & D)/26(T.W.D)*20(P.D.M, Assume)*8.33%], the final amount will be 224.
For any clarification, feel free to call me anytime at 9008744009.
With Regards,
Prasad