When a UK Sponsor makes you an offer, they have to offer you the minimum pay for that occupation as governed by UK law.
A caregiver in the UK earns a minimum of 1,707 GB Pounds per month. Less income tax of 132 GB Pounds and National Insurance of 117 GB Pounds, leaves you with a monthly take home pay of 1,458 GB Pounds (approx. 592,000rps). This is the minimum pay guaranteed by UK law.
A nurse, starts off at band 3, and if employed in England on a 37.5 hour week earns a minimum of 20,330 GB Pounds per year = 1694 GB Pounds (approx. 679, 840 rps) per month.
This increases as you get more experience and move up the bands.
A registered nurse is band 5 gets at least 25,655 GB Pounds per year = 2138 GB Pounds per month. Less taxes, your take home pay is 1789 GB Pounds ( approx. 726,50 0Sri Lankan rupees) per month.
If you’re a doctor starting your specialist training in 2022 your basic salary starts at £40,257 (= approx. 16,158,000 rps) to £53,398 (=approx. 21,432,600 rps)
If you’re working as a specialty doctor you’ll earn a basic salary of £50,373 (= approx. 20,218,700 rps) to £78,759 (= approx. 31,608,300 rps).
If you are a specialist grade doctor you’ll earn a basic salary of £80,693 (= approx. 32,378,400 rps) to £91,584 (= approx. 36,746,600 rps).
From 1 April 2022, the pay range for salaried GPs is £65,070 (= approx. 26,108,700) to £98,194 (= approx. 39,404,000 rps).
All quotes above are estimates and are annual gross salaries
Taking the lowest of £29,384 per year, deducting taxes, your take home pay = £24,005 per year, or £2,000 per month (=approx. 802,609 rps).
To convert gross to take home pay, you can use https://salaryaftertax.com/salary-calculator/uk
And for a currency convertor use https://www.oanda.com/currency-converter/