Hi Ben
rupees are a currency that cannot be taken out of the country so i dont know if you can change it to sterling before transferring it over although im sure this will be costly. There are money grams/orders and services like this but again you could end up paying quite a bit in fees.
make sure you've got the correct visa & working permits and anything else you need oh and your vaccinations/malaria tablets sorted well in advance
sorry if im repeating everything if youre aware already
Anna x