The differences between the IAS and IPS services in India primarily lie in their roles, responsibilities, and career paths. IAS officers primarily manage government departments and policymaking at various levels, focusing on administrative responsibilities, while IPS officers are responsible for maintaining law and order, enforcing laws, and managing police forces. The selection for both services is done through the same UPSC Civil Services Examination, but their training differs significantly post-selection. IAS officers are trained in administrative and leadership skills, whereas IPS officers receive specialized training in policing and crime investigation.