Citizens of India who are not residents to India (have NRI status) are not entitled to have ordinary savings accounts in India. If you have such accounts (e.g. left them behind to support your family while you are abroad), they need to be converted to NRO (NonResident Ordinary) accounts as soon as possible. Your bank will have forms for completion of this process. Any interest
that these accounts earn will be taxable income to you in India, and possibly in the U.K. too, though tax treaties (or Double Taxation Avoidance Agreements) generally allow you to claim credit for taxes paid to other countries.
Now, with regard to your question, NRIs are entitled to make deposits into NRO accounts as well as NRE (NonResident External) accounts. The differences are that
money deposited into an NRE account, though converted to Indian Rupees, can be converted back very easily to foreign currency if need be. However, the re-conversion is at the exchange rate then in effect, and you may well lose that 10% interest earned because of a change in exchange rate. Devaluation of the Indian Rupee as occurred several times in the past 70 years. Once upon a time, it was essentially impossible to take money in an NRO account and convert it to foreign currency, but under the new recently introduced schemes, money in an NRO account can also be converted to foreign currencies, but it needs certification by a CA, and various forms to be filled out, and thus is more hassle.
interest earned by the money in an NRE account is not taxable income in India, but is taxable income in the U.K.
There is no taxable event (neither in U.K. nor in India) when you change an ordinary savings account held in India into an NRO account, or when you deposit money from abroad into an NRE or NRO account in an Indian bank. What is taxable is the interest that you receive from the Indian bank. In the case of an NRO account, what is deposited into your NRO account is the interest earned less the (Indian) income tax (usually 20%) deducted at the source (TDS) and sent to the Income Tax Authority on your behalf. In the case of an NRE account, the full amount of interest earned is deposited into the NRE account -- no TDS whatsoever. It is your responsibility to declare these amounts to the U.K. income tax authority (HM Revenue?) and pay any taxes due.
Finally, you say that you recently moved to the U.K. for a job. If this is a temporary job and you might be back in India very soon, all the above might not be applicable to you since you would not be classified as an NRI at all.