Summary

The God of Small Things is about a family living in India after the declaration of independence. Their story isn’t told in chronological order but it is revealed bit by bit to the reader.
Rahel and Esthappen (Estha) are seven year old fraternal twins. They are living in Ayemenem with their mother Ammu and her brother Chacko, their grandmother Mammachi and their great-aunt baby Kochamma. Their father Baba lives in Calcutta. Ammu left him when the twins were two years old.
The family is expecting the arrival of Margaret and Sophie Mol, Chacko’s ex-wife and daughter, who are living in England. Since Margaret’s second husband Joe had died in a car accident. Chacko invited them to spend Christmas in India in order to get over the loss. When they have arrived, Sophie Mol is taking centre stage. So Rahel and Estha stroll around on the river bank and find an old boat. With Velutha’s help they repair it and frequently cross the river to visit an abandoned house on the other side. Velutha is an Untouchable, whom Ammu and Chacko have known since their childhood. Their family have given him the opportunity to visit a school and employed him as a carpenter and mechanic in the family’s pickle factory.
During the guests stay Ammu is more and more attracted by Velutha. One night they meet at the river where they sleep with each other. As it is not possible for an untouchable to have a relationship or even an affair with somebody from a superior caste, they have to keep their meetings secret. But one night Velutha’s father observes them and, feeling humiliated by his son’s overbearing behavior reports everything to Mammachi and Baby Kochamma. As a consequence they lock up Ammu in her room. There Rahel and Estha find her and, through the locked door, ask her why she being locked up. As she is angry and desperate, she blames the two children that without them she would be free and they should go away. Hurt and confused they decide two run away and stay at the abandoned house. But Sophie discovers the twins plan and demands to be taken along. While the three are crossing the the river, which has risen from heavy rainfall, their boat capsizes. Rahel and Estha are able to reach other shore but Sophie cannot swim and is carried away by the current. After a long search for Sophie, the twins go the abandoned house and fall asleep on its veranda. Neither do they see Velutha had visited the house of Ammu’s family not knowing that their affair had been discovered. When he arrived Mammachi insulted him and chased him off. In the morning the children’s absence is detected. Then they recive the message that Sophie Mol has been found dead by the river. Baby Kochamma goes to the police and wrongly accused Veluta of attempting to rape Ammu and kidnapping the children. When the police find Velutha of attempting to rape Ammu and kidnapping the children. When the police find Velutha sleeping on the veranda of the abandoned house, they beat him up so heavily that he almost dies. The twins wake up and observe the whole procedure. At the police station they are forced by Baby kochamma to confirm the wrong statement which she has made in the following night Velutha dies in prison.
After Sophie Mol’s funeral Ammu and the twins have to leave the family’s house because Chacko, manipulated by Baby Kochamma accuses them of being responsible for Sophie Mol’s death. Estha is sent to his father in Calcutta where he attends school and later college. Ammu is forced to leave Rahel in Ayemenem in order to look for employment. But Ammu is not able to earn enough for a living and so she dies of bad health a few years later along in a hotel room.
Rehel returns to Ayemenem at age of 31. She has not Estha since they were separated after Sophie Mol’s father. She married an American and moved with him Boston. After their divorced she has been working to make a living. Now Rahel returns to Ayemenem because she wants see Estha., who has already returned to their familys house. During his stay in Calcutta he someday stopped speaking. After spending a whole day together in Ayemenem, Rahel and Estha sister and brother, are sleeping with each other.

The fact that Estha has stopped speaking and that Rahel and Estha  sleep with each other are only two aspects in which one can see how deeply hurt they still are by the events with Velutha and Sophie Mol that happened long ago.