Switching from Infosys to TCS

Am a senior consultant with 12+ years of experience and joined Infosys 3 years back from Cts. It’s been 3 years without any salary hike and onsite opportunity. I was promised onsite last year but dropped out due to project budget. This year again trying if it happens? Am greeting 16.6l as of now and how much such I ask tcs. Am a network engineer with 10+ years and over all 12+ years. My manager is supportive and said once offer released we can try for hike or promotion. Onsite is still under budget. Suggestions are welcome, how to proceed. Note: I work mostly from home and goes office just for audit, townhall or important meetings as all my counterparts are onsite members.