Welcome to India Sir,
in terms on Indian Taxation, for FY 2018-19 your status would be RESIDENT. You need to show your Indian and USA income (Tax liability only for Indian income).
for USA, tax from Salary income may have deducted already and ask authority wheather need to submit return required, as per my knowledge, if you leaving country for good you may claim your deducted tax back. (Double check with one of the Consulant in USA.
i would love to assist on the same further.