Bonus; you may confirm if you are referring to statutory bonus as per Payment of Bonus Act.
Bonus as per the Act : It is paid for the accounting year and if it is say; Jan-Dec and bonus is not paid by 30th Nov of subsequent calendar year then complaint be lodged with Labor commissioner.
Check if you are eligible for such bonus.
Also confirm if you have not been disqualified.
You may go thru:
THE PAYMENT OF BONUS ACT, 1965;1,2,8,9,19