Hacker News Reader

You can create a ProtonMail account verified through a Yopmail.com account. This works in the U.S.A. probably in India too.

With Microsoft I was able to use my email for 2 weeks before they blocked it, they don't require the mobile number on sign up. It was a legitimate email, not spamming etc. so it was pretty bad of them.

LinkedIn is even worse, every week they ask me to add a profile photo even after I decline, and I pay for LinkedIn premium. Really scummy tactics.

I tried to create a hotmail account a couple of days ago; while they don't require the mobile number on signup, they do require it before you're allowed to send any email.

Can you get unregistered sim cards in India, or does every sim card get registered?

Every sim card registered. One needs to submit documents as photo proof and address proof to get a sim card.