From the Store description:
• Unlimited Music - Over 45 million tracks across Bollywood songs, English¹ and International hits, Hindi chartbusters, independent Indian artists, and all your Indian regional music. Build your dream collection.
• Playlists and Radio - Expertly curated playlists and custom radio stations for any mood or genre. Listen free with ads, or get JioSaavn Pro for full access to all premium features including:
• Save Data & Listen to Songs Offline - Download your favorite songs, albums, and playlists to save data, and listen anywhere – even without internet – on up to five devices.
• Enjoy Ad-Free Music - Completely ad-free listening, just you and your music.
• Beautiful High Quality Audio - Listen at crystal clear 320kbps, streaming or downloading. Enjoy music the way it was meant to be heard.
Stop fussing with free music players, searching for Bollywood mp3 songs, or risking viruses from side-loading Hindi music apps or downloading the latest Hindi songs from shady websites. JioSaavn is your free music player, with all your favorites, old and new, across Hindi, English¹, Tamil, Telugu, Punjabi, Marathi, Bengali, Kannada, Gujarati, Malayalam, Bhojpuri, Rajasthani, Urdu, Haryanvi, Assamese, and Odia.
And here's Jiosaavn UWP in action under Windows 10 Mobile:
You can grab this here in the Store if you want to get your Bollywood on!