Wipro — Wipro Onboarding Delay for more than 3 months

I got the offer from Wipro on 13th January 2022 and another email where I was informed my joining will be somewhere between June and July. Hence I rejected another company's offer.

I rejected a job offer from another company and waited for nearly 3 months without a salary because of Wipro's offer. I have my brother who I should look after and I am facing serious financial issues.

I would want to know when will I be onboarded.