The song Tumhi Ho Bandhu Sakha Tumhi is from Saif Ali Khan, Deepika Padukone & Diana Penty starrer Cocktail. Cocktail is Illuminati Films’ production which is Saif Ali Khan’s production house. Tumhi Ho Bandhu is sung by Kavita Seth & Neeraj Shridhar under the music direction of Pritam. While the lyrics of Tumhi Ho Bandhu are penned by Irshad Kamil who is an amazing writer, He always gives something new. You might remember that He wrote the lyrics of Rockstar songs which is historic.