They called for an interview and didn't schedule it till the date. I didn't even call back, as I was busy with some other work, but later I heard that they didn't hire the people even after sharing the offer letter. They will say some stories and neglect it.

It's an onsite face to face interview. Still the interview happened through teams meeting. The interviewers joined in the teams meet. All the interviewers are from offshore for an onsite role.