Need guidance on Wipro Interview process

Need a help, I have an overall 3 years of experience in ML and AI and I recently interviewed at wipro india for senior AI position, during the initial screening I informed hr that my notice period is 1 month but it was actually 3 months.

post that they scheduled interview and I cracked all 3 tech rounds and the hr , and finally during hr round I informed that my notice period is 3 months they didn't react anything

post 3 days they sent an email to upload the docs for bgv verification, so does this mean they accepted 90 days notice and also usually how much will it take for them to roll out offer letter post bgv verification, if some one can clarify that would be of great help, thanks !