TCS Hiring experience

TCS Hiring experience, disappointed by its hiring process

I gave a walk in interview 1 month before and at the same time I got confirmation that I am selected for the position and will get a call from HR for further communication. But i did not get any communication

I tried their career@tcs mail and also did mail HR but no response At the end I asked my friend from tcs to go and visit HR in person And then they said profile is rejected on that same day

I was selected on the same day Also as per HR I am rejected on the same day

And it was the same hr who selected me I am disappointed by the TCS hiring team , what else are they expecting from a candidate??

Do they want a letter of recommendation from PM Narendra Modi????