How many songs has sonu nigam sung till now in films?

As of my last update in September 2021, Sonu Nigam has sung over 1,500 songs in films across various languages, including Hindi, Telugu, Tamil, Kannada, Marathi, Bengali, Assamese, and Punjabi. However, please note that this number may have increased since then, and it's best to check with an up-to-date source or with Sonu Nigam's official representatives for the most current information.