EY or Synechron or third party payroll | 5 lakh difference in fixed

I am inclined towards EY obviously but for third party the client is German product based company and fixed is 5 lakh higher than EY
Synechron offer is expected to arrive tomorrow and match third party offer or could be one lakh higher than third party offer

EY joining is on Monday
Today is Thursday, only one working day left in between that too it’s Raksha Bandhan

I don’t want offer to get revoked by annoying hr

What would you do ?

Please help