A useful link relating to current, capital and public expenditure…. https://thehimalayantimes.com/business/national-planning-commission-fixes-budget-ceiling-of-rs-1200bn-for-next-fiscal/
Spec references below for Edexcel, AQA & OCR: 
Edexcel spec reference 4.5.1 a) Distinction between capital expenditure, current expenditure and transfer payments
AQA spec reference The types of and reasons for public expenditure
OCR spec reference P 21 Explain what is meant by current and capital government expenditure