The study attempts to trace the emergence and development of the discipline viz. ?Psychology? in the European countries and also briefly discuss the divergent views of the world famous Psychologists. Subsequently, aiming at analyzing some of the excellent poems of Saṅgam classics from the psychological perspective, especially within the frame work of ?Behavioural Psychology?, the present research work intends to interpret the appropriate feelings and behaviour patterns of the heroines and the heroes evoked in akam and puṟam poems. As there is space for new understanding of the traditional concepts, the book earnestly throws the light on, how and why, the heroes and heroines, tōḻis (girlfriends) and pāṅgars (companions)/poets, naṟṟāys (biological mothers), cevili-t-tāys (foster mothers), concubines and harlots, chieftains and kings, et al. behave either with adoptive, or assertive, or aggressive attributes in certain situations. I have earnestly tried to bring out certain fascinating facts of behavioural patterns of the above mentioned dramatic personae in this book.