Need suggestions about 90 days notice

Put 30 days notice period on jobs portals. You will get the calls. Clear one or two and then put the resignation. Once the joining date arrives, try to make some excuse and shift it to a month or so.

Unfortunately, this is the only way to get calls and have offers in hand. Putting 90 days on job portals will not fetch you a single call, unless you are extremely lucky.

If you can take the risk of resigning without offer then do it. Else first get one offer from these Indian mnc then after resignation look for better offers.