Malayalam is not a title of a movie but rather is one of the languages spoken in India, particularly throughout Kerala, the Lakshadweep Islands and India's west coast. The people who speak Malayalam are referred to as "Malayalis" and their television can be called "Malayalam television."
To find a streaming service that streams shows in Malayalam, it will be necessary to search online. One option for streaming is through the Malayalam TV Entertainment Channel on Livestream. Another option is to contact local Malayalam television providers and ask if they have any streaming services online. It may take a while to find the best fit when searching online so it is best to try several services.