Saksoft vs lingaro

Hi , I have received an offer from lingaro and saksoft. Lingaro offering 20lpa and saksoft offering 24lpa. Both are providing remote options. I accepted lingaro offer 3 months ago. My preference is joining with lingaro. After an accepted offer can I request lingaro to revise my ctc as per my recent offer. 2 weeks I have. Need suggestions. Also my current organization is trying to retain me by providing an onsite opportunity to the UK. Need suggestions