correct itr form for

File ITR4 u/s. 44ADA of the act.

I am a merchant navy officer and was filing returns in ITR2 for last couple of years.In FY 2018-19 I did not have any salary income.I only had income from Fds and capital gains from mutual funds.

My queries are
1. Which ITR form to use for AY 2019-20?

2.I have NRE deposits,interest from NRE deposits will be taxable or not?

3.Presently I am working again and my salary in USD is getting credited into my NRE account.

Please clarify.

What is your residential status for FY 2018-19?