Uttar Pradesh chief minister Mulayam Singh Yadav has ordered a probe into non-utilisation of Rs 220-crore public fund earmarked in the annual budget for development projects.it is learnt that the chief minister ordered a probe while reviewing the performance of different departments on June 21. The departments whose working were reviewed included the departments of irrigation, public works department, revenue, energy, agriculture, urban development, rural development, health, food, sports, sugarcane and development.