The correct option is D 1,2 and 3
Based upon the recommendations of Acworth Committee, the Finances of Railways were separated in 1924 and thus from 1924 onwards, the Railway Budget was separated from the General Budget.
In 1924, when the first Railways budget was presented, the Railways entailed more funds than India’s expenditure on all other aspects of administration combined. Moreover, it was a tool to protect the foreign investment, particularly British investment in railways in India.
In 2017, the NDA Government had merged the Railway Budget with the Union Budget, thus ending a practice that had started in 1924 when the country was under British rule.