Dear Anura
Here is the answer to your query.
Thulasi- 1)She is the wife of Raman.
2)She is a landless labourer to who works under Ramalingam.
3)She transplant the paddy,weed them and also do harvesting.
4)She cook food for her family,clean the house,wash clothes,collect firewood and fetch water.
Ramalingam-1) He is the husband of Karuthamma.
2)He is a land owner or a Zamindar and had 20 acres of paddy fields in Kalpattu.
3)He has a rice mill where Sekar works sometimes.
Hope it helps you!!