A common complaint regarding the Sillunu Oru Kadhal BGM is that the beginning is too quiet. Here is how to fix that after your download:
No. If you download the BGM from YouTube and use it in your monetized video, you will get a copyright claim. If you use a from a fan artist, you must credit them and check their specific license. Sillunu Oru Kadhal Love Bgm Ringtone Download