Yes your income for the month of April including final settlement will be taxable in India. However, you can take credit of taxes paid in the middle East.
Please find the extract of law below:
An individual is said to be resident in India in any previous year, if he-
(a) is in India in that year for a period or periods amounting in all to one hundred and eighty-two days or more ; or
(B) having within the four years preceding that year been in India for a period or periods amounting in all to three hundred and sixty-five days or more, is in India for a period or periods amounting in all to sixty days or more in that year.
You are covered in clause b.
You can surely contact me for further clarifications.
Thanks and Regards
CA Abhishek Dugar