Thankakudam is a 1965 Indian Malayalam film, directed by SS Rajan and produced by . The film stars Prem Nazir, Sheela, Adoor Bhasi and T. S. Muthaiah in lead roles. The film had musical score by MS Baburaj.
Venu (Prem Nazir) who owns a glass factory in Ernakulam goes to America for higher studies. During Venu’s absence his mother, Saraswathi Amma (Aranmula Ponnamma), manages the factory with the help of the manager Vikraman Nair (Muthiah). Gradually Vikraman brings everything under his control and swindles the company taking advantage of Saraswathi Amma’s trust in him.