Short term capital gains tax

Hi Sir,

My Total income is less than 2.5 lakhs,

interest income is 1.40 lakh

Short term capital gain of 0.95 lakh

No salary income

I have not deducted any expenses like House Rent, books, internet expenses etc.

Now my queryies are as follows

1. First of all Do i need to file income tax return, I did file my income tax returns in previous years as I was working and salried employee, this year I am not working?

2. Can I use ITR-1 to file income tax

3. If I can't use ITR-1 which form I need to use?

Please help me with above queries

Thanks in advance

John