Chennai:  T.T.V. Dinakaran of the ousted AIADMK faction (Sasikala group) has declared himself as the “true political heir” of the late J. Jayalalithaa after zooming ahead in the by-election to R.K. Nagar assembly seat in Tamil Nadu, the counting for which began this morning. Dinakaran contested as an independent candidate. Dinakaran was on his way…