Saathi

Dr. Ravi returns from abroad and takes up a position as chief surgeon in a hospital. He meets with Nurse Shanti, who lives an impoverished lifestyle with her ailing mother, on whom he decides to perform surgery, but she passes away. A guilt-ridden Ravi marries Shanti much to the chagrin of his mentor, Kaka, who had hoped that he would marry his daughter, Rajni.

The couple travel to Kashmir for their honeymoon, and settle down to a harmonious relationship. Hoping to travel more, their plans are interrupted by the hospital's head doctor, who wants Ravi to focus on cancer research. The couple drop their travel plans and immerse themselves in research so much so that Shanti becomes ill, and not wanting to become a burden, leaves. A frantic Ravi searches high and low in vain, and is subsequently devastated to learn that she has perished in a train accident. Kaka then becomes very ill and Kaki tells Ravi that the cause of his illness is Rajni's insistence that she not marry anyone except Ravi. As a result, Ravi marries her but is unable to get Shanti out of his mind. An embittered Rajni feels neglected and decides to confront him, resulting in his losing his vision, perhaps never to see again, and unable to do any further cancer research.

• Vyjayanthimala as Shanti
• Rajendra Kumar as Ravi
• Simi Garewal as Rajni
• Pahari Sanyal as Rajni's Father
• David Abraham Cheulkar as Head Doctor
• Veena as Rajni's Mother
• Ram Mohan as Ravi's Colleague

Guest appearances include:

• Shashi Kapoor as actor during the filming of Raja Saab
• Nanda as actor during the filming of Raja Saab
• Sanjeev Kumar as Ashok
• Shabnam
• D.K. Sapru as Mr. Philips
• Radhakrishan as Sadhuram
• Pratima Devi as Shanti's Mother

When C.V.Sridhar approached Naushad for composing, he listened to the songs of the original film Paalum Pazhamum which was composed by Viswanathan–Ramamoorthy in Tamil. After listening to the songs, Naushad wrote a letter to M.S.Viswanathan saying than he cannot replace the wonderful music which he has composed and he's declining the project. Later, Naushad accepted to compose for the film only on Viswanathan's request. The film's soundtrack was composed by Naushad while the lyrics were provided by Majrooh Sultanpuri.

At the end of its theatrical run, the film had grossed around ₹1,76,00,000 and netted ₹88,00,000, thus becoming the eleventh highest grossing film of 1968 with a verdict of average.[3]

Won

• Filmfare Award for Best Supporting Actress – Simi Garewal[4]
• Filmfare Award for Best Editing – N. M. Shankar

• Saathi at IMDb
• Saathi profile at Upperstall.com