For Python 2.7.9 and above:

pip install InstaGaana

For Python 3.4:

pip3 install InstaGaana

To Upgrade:

For Python 2.7.9 and above:

pip install InstaGaana --upgrade

For Python 3.4:

pip3 install InstaGaana --upgrade

$InstaGaana 
usage: InstaGaana [-h] [-s S [S ...] | -l L]

InstaGaana: Instant Music Downloader for Saavn.

optional arguments:
-h, --help    show this help message and exit
-s S [S ...]  Name of song.
-l L          Song link.

Developer: Sumit Dhingra, https://github.com/LinuxSDA/

Linux:

/home/username/Music

Windows:

C:\users\username\Music

OS X:

Current directory

Android repo available here

Downloading copyrighted material may be illegal in your country. Use at your own risk.

Copyright (c) 2017 Sumit Dhingra

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.