Thank you for your question.
The following documents are typically submitted for Spouse Settlement Visa Applications:
Copy of UK passport Employment contract (if working) or a letter from your employer confirming employment (job title, hours, pay etc)
last 6 months wage slips last 6 months bank statements P60 property inspection report, Land Registry title deed or consent from landlord if property is rented, copy of mortgage or tenancy agreement as the case may be Marriage Certificate evidence of relationship (pictures, emails, wedding photos, wedding invitation etc) latest council tax bill if available, utility statements Your wife to be: 2 passport size photos original passport
English language test result certificate TB test certificate from an approved centre: https://www.gov.uk/government/publications/tuberculosis-test-for-a-uk-visa-clinics-in-nepal/tuberculosis-testing-in-nepal
Hope this helps