The Dalhousie administration in India implemented several measures that contributed to the discontent and ultimately led to the outbreak of the revolt of 1857. This revolt was a significant event in Indian history, as it marked a direct challenge against British colonial rule.

Option 1, the Doctrine of Lapse, was a policy introduced by Lord Dalhousie that allowed the British to annex Indian states if they did not have a male heir. This policy disregarded the traditional systems of inheritance and angered many Indian rulers and elites.

Option 2, the introduction of railways and telegraph, was another measure implemented by Dalhousie. While these developments brought certain benefits, such as improved communication and transportation, they also disrupted existing social and economic structures and caused resentment among certain sections of Indian society.

Option 3, the abolition of titles and pensions of several rulers, was another measure that contributed to discontent. This policy aimed to reduce the financial burden on the British administration, but it further eroded the influence and status of Indian rulers.

Option 4, educational reforms, however, was not a measure that directly caused discontent or contributed to the revolt of 1857. This option can be considered as the correct answer because while Lord Dalhousie did implement certain educational reforms,