 The new viceroy , Lord Mountbatten , advanced the date for the transfer of power , believing the continuous contention between the Congress and the Muslim League might lead to a collapse of the interim government . He chose the second anniversary of Japan 's surrender in World War II , 15 August , as the date of power transfer . The British government announced on 3 June 1947 that it had accepted the idea of partitioning British India into two states ; the successor governments would be given dominion status and would have an implicit right to secede from the British Commonwealth . The Indian Independence Act 1947 ( 10 & 11 Geo 6 c . 30 ) of the Parliament of the United Kingdom partitioned British India into the two new independent dominions of India and Pakistan ( including what is now Bangladesh ) with effect from 15 August 1947 , and granted complete legislative authority upon the respective constituent assemblies of the new countries . The Act received royal assent on 18 July 1947 . 
 The new viceroy , Lord Mountbatten , advanced the date for the transfer of power , believing the continuous contention between the Congress and the Muslim League might lead to a collapse of the interim government . He chose the second anniversary of Japan <a href='null_genetive' title='1'><mark>'s</mark></a>surrender in World War II , 15 August , as the date of power transfer . The British government announced on 3 June 1947 that it <a href='been_done' title='2'><mark>had</mark></a> accepted the idea of partitioning British India into two states ; the successor governments would be given dominion status and would have an implicit right to secede from the British Commonwealth . The Indian Independence Act 1947 ( 10 & 11 Geo 6 c . 30 ) of the Parliament of the United Kingdom partitioned British India into the two new independent dominions of India and Pakistan ( including what is now Bangladesh ) with effect from 15 August 1947 , and granted complete legislative authority upon the respective constituent assemblies of the new countries . The Act received royal assent on 18 July 1947 . 
The new viceroy , Lord Mountbatten , advanced the date for the transfer of power , believing the continuous contention between the Congress and da Muslim League might lead to a collapse of tdainterim government . He chose thdaecond anniversary of Japan  surrender in World War II , 15 August , as the date of power transfer . The British government announced on 3 June 1947 that it done accepted thedaea of partitioning British India into 2 states ; the dacessor governments would be given dominion status and would have an implicit ryte to secede from the British Commonwealth . The Idaan Independence Act 1947 ( 10 & 11 Geo 6 c . 30 ) of the Padaament of the Unida Kingdom partitioned British India into the tw2ew independent dominions of India and Pakistan ( including what is now Bangladesh ) with effect from 15 August 1947 , and granted complete legislative authority upon the respdaive constituent assemblies of the new countries . The Act rdaived royal assent on 18 July 1947 .