Can anyone explain me detailed that how can I create a rain scene and water puddles should form over while its raining and it should have a drop effect
It would be nice if you would di a video tutorial or even u can explain by typing here
Thanks in advance
It’s a bit of a big ask actually, because there’s quite a lot going on there 
The rain itself is a particle system:
The puddles are in the ground material:
And the splashes are material, and possibly also particles:
So if I make the puddle will the water splash and will it be forever or will it dry?
When you spawn the rain particles, after a while, you adjust the material instance parameter to make the puddles appear. Then you can either ( also ) use the material to make the splashes appear, or spawn them as particles.
To make it dry again, it’s up to you to stop the rain, and adjust the puddle parameters back down.
This is not a really rain storm, you have to adjust everything yourself 
Oki dokey I will try but isn’t there any way of making a rain appear and disappear during different times?
From what you’re writing, you’re really looking for a weather system, which manages everything, an example is:
Weather systems range in price from about 100 down to 10 bucks, it really depends what you want. Some manage just rain, or snow, some manage time of day / sky / sun etc.
Otherwise, yes, you have to do it all yourself.
Another example is done using a post process:
This means it’s all done by ‘cheating’ at the last moment, and making everything look wet just before it is rendered to the screen. It also gives you drops on the camera…
I remembered you asked me about this, when this month’s free stuff came out:
It includes rain and puddles
