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.