463 Points
Joined September 2019
You are salaried person right?
1) Source fund for all these investment from your salary earning. There is no issue. You have a proof of funds. You don't need to worry about it.
2) Your Investment through SIP in mutual funds, is it comee under ELSS 3yrs locking scheme. You can avail income tax deduct otherwise, when you earn profit from it. You should declare in that financial year. Until then, you have no option declare these details in ITR.
3) Income earned from Investment like shares, property declare in ITR 2.