You did not tell period that you worked in the current year. A employee needs to work for a minimum of 30 days to get bonus for the year. This is generally paid around oct/nov of each year. Since, you said you left in oct, 2017 ( presuming ) this year. You have to get next year , provided bonus is already being paid in company for past years. Hope fully you will get next year before Nov, 30. Depending on months of service and declared bonus, this will be pro-rated.
Hope this clarifies.
5th October 2017 From India, Visakhapatnam
i am working in this company for past 24 years
5th October 2017 From India, Chennai