Hi Krish
So happy to see ur garden with so many plants... About rain lilly, At my mom's home this year, the plant blossomed twice with 40 flowers in a pot which was a feast to eyes. But lasted for two days... Thought of freezing it in my cam, but some how lost the time, So let me save yours... Guess no objections from your side...
By the way there is another plant, after first showers it sprouts out of nothing above the ground and blossoms immediately with four flowers just like old cone speakers usually shown in 80's films... I don't know the exact name, But we named it as speaker flowers which smiles for a week.. After that the whole plant dries out.