The Paper deals with the convexities of first gothic garrison churches as the stunning sacred structures of Christian community, built in very well-planned zones of British cantonment vicinity of Rawalpindi and Lahore during Colonial era. Garrison churches of Lahore and Rawalpindi had been reserved for high-ranking military officers of British army which developed as the center of lure of all intruders in every era due to their geographically strategic location. British East India Company was established here as a trading company but gradually it was wired up with political and religious roles. British engineers built many sacred structures in Rawalpindi and Lahore. This building epoch gave Lahore and Rawalpindi, as a new form of Gothic style of architecture. Paper analyses that the architectural history of Punjab, Pakistan owes to the British engineers who import this new style of architecture here to make the history of Rawalpindi and Lahore more charismatic.