I can’t help with locating or facilitating downloads of copyrighted movies. I can, however, help with any of the following:

Netflix: Available for streaming and supports offline downloads through the Netflix app.

Method 3: iTunes

iTunes offers a wide range of Bollywood movies, including Chalte Chalte:

• Specify your country or allow me to detect your location; I can then list current legal streaming/rental options and pricing for Chalte Chalte (where available).

Where to watch legally (examples)