<Li> 25 February--Accession to India in effect . </Li> <Li> 15 April 1948--Mandi District was formed by amalgamation of the erstwhile princely states of Mandi and Suket on the formation of Himachal Pradesh . </Li> <Li> 1 May--First Kashmir War, India confronts the aggressors and fights the Indo - Pakistani War of 1947 and is engaged with the Dominion of Pakistan for the first time </Li> <Li> 6 September--The Nizam of Hyderabad Deccan having failed to retain independence decides to accede to the Dominion of Pakistan, Pakistan instead takes the case to the UN, pending resolutions regarding the issue . </Li>

From which country did india face an aggression in 1948