Question

it was raining heavily on off and I was returning complete story in about 150 to 200 words with an appropriate
ending

Answer 1

It was raining heavily on off and I was returning from my extra class. The sky was almost dark. Suddenly lightning took place and the electricity went off. The dogs started barking, I was so scared. I started running towards my home. While running I fell down on the road and I saw that there was a mouse who became very weak and was unable to move, it could die. I stood up and took it to my home. In a few days it recovered and went off. I was glad save the mouse. After a few days I was going to market I was wearing an expensive ring and the mouse used to lick it, the mouse was very friendly. When I returned back I saw that my ring isn't in my hand. I was feeling helpless I sat in garden wondering that where it could be suddenly that mouse came and I saw that the ring was in its mouth then it gave the ring to me. 
Moral - When u help someone the favor would come back