Hello Aakash,

This referral spam does not hurt your SEO. Most of these are “ghost referrals”, meaning they don’t actually hit your server, but only show up in analytics. It will not influence how well you will do in search engines, it’s merely a pain in the behind when trying to accurately track incoming traffic to your site.

I’d recommend filtering them out within google analytics via hostname instead.

I think the link provided can help you in understanding better :- https://moz.com/blog/stop-ghost-spam-in-google-analytics-with-one-filter

Thanks.