The Tamil language has had its current standard written form since the
13th century; but because of increasing diglossia, spoken Tamil diale
cts have now diverged so radically from earlier norms, including the w
ritten standard (LT, or Literary Tamil) that no spoken dialect, region
al or social, can function as the koine or lingua franca. Because LT i
s never used for authentic informal oral communication between live sp
eakers, there has always been a need for some sort of spoken ''standar
d'' koine for inter-dialect communication. Aside from interpersonal co
mmunication, one hears this inter-dialect koine most clearly in the so
-called ''social'' film, which arose out of its antecedent, the popula
r or ''social'' drama. Conversational portions of novels and short sto
ries also exhibit spoken forms, though not always as clearly ''phoneti
c'' as a phonetician might expect. The goal of this paper is to examin
e the concept of ''language standardization'' as it has been applied t
o other languages, focusing on the role of literacy and writing in thi
s process; then to present evidence for, as well as the sources of, ko
ineization of ''Standard Spoken Tamil''; and then to determine whether
SST is in fact an emergent standard, given the challenges of literacy
and writing.