I cant the whole summary but here is something that might help!

In R.K Narayan's book- Swami and friends, it is bout

 a middle aged kid whose name is Swami Nathan. His father is a barrister or lawyer. His mother is a mere housewife, His granny is a old lady who is tolerant and narrative. She always listens' to Swamis' boring stories and his day stuff. After Swami tells his granny a story he always askes his granny a summary of the story hr told. As u see, it is already very funny here that the grand tells the story to the granny, it is also very to read the buk which narrates the problems he face with his friends - Mani a strong bully, Rajam-a rich and spoilt kid.