Muthalali

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.

After a few years Venu returns after his studies. He lands in Bombay en route to Ernakulam where he meets Kesavan (Pappukutty Bhagavathar), a hotel employee. Through Kesavan he comprehends the hardships faced by labourers and the need to understand the life of a worker before becoming the owner of a factory. Venu sends telegram to his mother informing her that he has to go on a business tour and will reach home a month later.

Venu reaches Ernakulam, in disguise as Velu, and gets himself a job in his own factory with the help of Devaki (Sheela), a worker in the factory. Venu befriends her father, Raman Nair (Thikkurissi), and stays in their home.

Venu gets a clear picture of what Vikraman Nair is up to and how he manipulates the factory's assets. Vikraman, in the meanwhile, is in love with Malathi (Kumari Padmini) who Venu was supposed to marry. Venu falls in love with Devaki.

Within few days, Venu gets a clear picture of the crisis the factory is passing through. Vikraman's wicked eye falls on Devaki. Venu decides it is time to return as himself. He leaves after writing a letter to Devaki saying that he will come back soon. Devaki becomes suspicious of Venu's motives. Devaki is dismissed from her job in the factory.

She leaves the city in search of Venu and reaches Thiruvananthapuram. There she meets her brother Kesavan, the hotel worker who Venu met in Bombay.

Venu comes back and takes charge of the factory. He is disappointed when he comes to know that Devaki has been dismissed and that she has left the home.

He meets the workers in his factory, tells them that he is aware of what the manager has been up to and assures them that there will be a change in how the factory is run.

Unable to come to terms with being shown his place in the factory, Vikraman spreads a rumour that Venu is an impostor Velu. And now for the climax.

Venu, in the meanwhile, sets out in search of Devaki and brings her back. He is arrested on charges of impersonation on a complaint by Vikraman. All misunderstandings are cleared. Venu reveals the purpose behind coming back under disguise and exposes Vikraman Nair. The police arrest Vikraman for swindling the factory. Venu marries Devaki. The workers of the factory are now under a "Muthalali" (owner), who understands the hardships they face and acknowledges their rights. A happy ending to the film.

• Prem Nazir as Venu/Velu
• Sheela (credited as Sheeladevi) as Devaki
• T. S. Muthaiah as Vikraman Nair
• Kumari Padmini as Malathi
• Aranmula Ponnamma as Saraswathi Amma
• Thikkurissy Sukumaran Nair as Raman Nair
• S. P. Pillai as Paramu
• Kottayam Santha as Meenashi
• Pappukutty Bhagavathar as Kesavan
• Panjabi as Sankaran
• Santo Krishnan as Watchman

The music was composed by Pukazhenthi and the lyrics were written by P. Bhaskaran.

• Muthalali at IMDb