NMC Requirements for Newly Qualified Nurses
UK NMC has made it easier for newly qualified nurses in their country of origin to migrate to UK without sitting for IELTS or OET. This waiver is only applicable to those who had their nursing education in English with both clinical and written component. However, note that your school will be asked to prove that you had your clinical interactions with clients with english.
For full details of How to become a registered Nurse in the UK, check
UKNMC Nursing Registration for Overseas Nurses