Honda 2 Wheelers India — Honda Shine

So I purchased a Honda Shine in month of May 2021 from Harnek Motors Powai and within 2 months the bike started giving issues and as such issues which was not understandable, bike was not starting and when it started the fuse started getting damage, so I purchased a starter plug thought that its starter issue but no the plug was fine also the wires were fine, this is not happening in the old bike or second hand bike it happened in the bike which i purchased 2 - 3months ago.
Do you have any explanation on this.