HCL Technologies — Offer & Appoinment letter issue

Address:

Mumbai City, Maharashtra

My Self Nitesh Sansare i receive a offer & Appoinment letter from HCL comnet then i left my previous job after 15 days of my Notice period.But now when i reached at a time of joining to the HCL HR told me that we are not taking you on the job. She also told me offer letter is conditional it is mention that this offer & Appoinment letter is valid till your pre-employment verification check.After one day she told me your degree certificate is not AICTE/UGC/DEC approved. I asked question to her if it is not AICTE/UGC/DEC approved then how you released the offer letter because without looking the education certificate no one released your offer & Appoinment letter. I tell her my certificate is recognized by gov of india & gov of delhi.Then i also tell her now you are telling me we are taking those candidates who is certified by AICTE/UGC/DEC.Then next time you tell to the another employee that we are taking only those candidates who complete his certification from Mumbai university. I asked you what should i do currently i left my previous & now i am a unemployeed.