About TCS walk in interviews-cooldown period question

Hey everyone, I’m a Java developer with 4 years of experience. I’ve been seeing a lot of TCS walk-in interviews lately and I’m considering attending one.

Is any one idea that if I attend and don’t get selected, will I be blocked from applying to TCS for the next 6 months? Or it is like the block company-wide or only specific to that location/role?

Would really appreciate if someone who has been through this could share their experience!