Vengayam, I did not want to list all the movies of P.Madhavan as it would have become a long(er) recital :D
Anyways, since you asked here are some more:
In 1979, under the banner 'Ramya Movies' Sethumadhavan produced the Tamil remake of K.Viswanath's 'seethamalakshmi'; titled 'ENippadigaL', it was directed by P.Madhavan. Sethumadhavan then produced 'naan naanEthaan' (1980/ Ramya Chitra), which was again directed by P.Madhavan. Rajkumar, Rajesh, Vadivukkarasi and Vanithasri were the actors.
P.Madhavan also produced and directed 'veetukku veedu vaasappadi' (1979/ Arun Prasad Movies/(Vijayakumar,Rati,Suman,Shobha) which the Tamil remake of 'intinti ramayanam' and directed 'kuruvikkoodu' (1980/ Manimekalai Pictures/Sudhakar, Saritha). Hitler Umanath (1982/ PVT Productions) was probably the last time Madhavan worked with Sivaji. He worked with Vijayakant in 'saththiyam neeyE' (1984/ Kanmani Creations) in which his son Arun first appeared in a cameo.
Though most of P.Madhavan's movies had music by MSV, he has also worked with KVM, GKV, Ilaiyaraja, Rajan-Nagendra, Shankar-Ganesh and Chandrabose.
Was watching the birthday celebrations on Jaya TV :)
Suri, thanks for the clarification! 'unadhE iLa maalai pozhuthu'
was featured as SOTD here:
I have seen the movie on TV since then. The name 'thEneer' was changed to 'oomai janagaL', and the movie seems to have been released in 1984 under the banner 'Kavityuga Creations'.