Cognizant Technology Solutions — date of joining delayed by over 8 months

I've been interviewed for pat on 27th january 2019, and got selected. Since then i'm waiting for the joining letter and it's been nearly 9 months and i'm still waiting. There are many like this waiting for the same. I've been sitting with no work and all of my friends have finished their trainings but i haven't got the joining yet. It's been really tough waiting for the joining, i request to send the confirmation and the doj as soon as possible.