Consider the following two Modern History questions: (1) The revolutionary Surya Sen (Master Da Surya Sen) who organized the Chittagong Armoury Raid in 1930 was a schoolteacher. The raid was aimed at doing what? (2) The Indian Space Research Organisation (ISRO) was established in 1969 under the leadership of which scientist? Which option gives the correct answers in the same order?

This paired question tests two independent historical relationships and requires both to be correct in the stated order. On that evidence, the supported choice is Cutting off communications and sparking a general rebellion. The revised item avoids claiming more than the source establishes and distinguishes participation, leadership, foundation, ratification and later reorganisation where those roles differ. Surya Sen (Master Da) led the Chittagong Armoury Raid on 18 April 1930 aiming to cut off communications steal weapons and spark a general uprising against British rule. The raid was partly successful - the Chittagong Police Armoury and the Auxiliary Force Armoury were captured. However the rebellion could not be sustained and Surya Sen was captured For statement two, the supported answer is Vikram Sarabhai. The Indian Space Research Organisation (ISRO) was established on 15 August 1969 under the visionary leadership of Dr. Sarabhai is called the Father of the Indian Space Programme. ISRO launched India's first satellite Aryabhata in 1975. Reading the stem closely separates Vikram Sarabhai from other names in the period: the question tests one defined act, location or institutional decision, not overall prominence. This development forms part of the changing national movement, in which constitutional negotiation, mass mobilisation, boycott, civil disobedience and revolutionary action followed different strategies; Exact dates and organisational decisions matter because related sessions Therefore the correct ordered pair is Cutting off communications and sparking a general rebellion followed by Vikram Sarabhai. An option containing only one correct component must be rejected because the stem asks for a complete two-part match. This format strengthens chronology, role discrimination and careful option comparison rather than rewarding recognition of a single familiar name.