India, Aug. 12 -- Tanishk Bagchi's latest hit, O Saki Saki from the upcoming John Abraham-starrer Batla House has already garnered 115 million views on YouTube. But the music composer says, with a laugh, that his benchmark of success is 400 million. He is thrilled about the success of the song and says that he just wants people to like his songs, and that's all that he needs to be happy. However, recently, Koena Mitra, who starred in the original version of the song, had slammed the remake and called it a "mess". But Tanishk seems to be unfazed by all these comments. "I don't even have the time to think about any of these because there is so much work on my head right now. Every day, I am completing three to four songs. I am just putting my...