Mahesh Dattani is hailed as the dramatist of universal stature, known for his inspiring writings about muted issues of the society. His fantasy towards theatre is fulfilled through his theatre playpen. He is the first playwright in Indian writing in English to receive the Sahitya Akademi Award. His plays expose social issues like child sexual abuse, difficulties in the existence of transgender and same sex love. They are unsettled issues that do not find any solution till date. The upper surface of the society shows that it has turned towards modernization and intellectual enhancement, but the crest still has its own tradition. However the way one thinks has not changed; especially the behaviour towards the female gender. Marching towards modernization stay at the brim and yet not deep rooted. This paper applies Lacanian concepts to study the agony of child sexual abuse and the consequences of dark psychology and manipulation in the play Thirty Days in September.