Question: From what country did Sandeep Dikshit's political party gain India's independence?

Context paragraphs:
All India Forward Bloc: The All India Forward Bloc (AIFB) is a left-wing nationalist political party in India.  It emerged as a faction within the Indian National Congress in 1939, led by Subhas Chandra Bose.  The party re-established as an independent political party after the independence of India.  It has its main stronghold in West Bengal.  The party's current Secretary-General is Debabrata Biswas.  Veteran Indian politicians Sarat Chandra Bose (brother of Subhas Chandra Bose) and Chitta Basu had been the stalwarts of the party in independent India.

Indian National Congress: The Indian National Congress (   ) (INC, often called Congress) is a broad-based political party in India.  Founded in 1885, it was the first modern nationalist movement to emerge in the British Empire in Asia and Africa.  From the late 19th-century, and especially after 1920, under the leadership of Mahatma Gandhi, Congress became the principal leader of the Indian independence movement, with over 15 million members and over 70 million participants.  The Congress led India to independence from Great Britain, and powerfully influenced other anti-colonial nationalist movements in the British Empire.

List of by-elections to the Scottish Parliament: This is a list of by-elections to the Scottish Parliament, in reverse chronological order.  These occur when a constituency seat becomes vacant, due to the death or resignation of a member.  Where seats changed political party at the by-election, the result is highlighted: red for a Labour gain, yellow for a Scottish National Party (SNP) gain, blue for a Conservative gain, orange for a Liberal Democrat gain, and grey for any other gain.

List of Solomon Islands by-elections: This is a list of by-elections to the National Parliament of Solomon Islands since the First Parliament in 1976, with the names of the incumbent and victor and (when known) their respective parties.  Where seats changed political party at the election, and where that change is known, the result is highlighted: yellow for a Democratic Party gain.

United Kingdom general election, 2001 (Wales): These are the results of the United Kingdom general election, 2001 for the country of Wales.  The election was held on 7 June 2001 and all 40 seats in Wales were contested.  The overall result remained the same as in the previous election in 1997, with only two Welsh seats changing parties during the election; that of Carmarthen East and Dinefwr (a Plaid Cymru gain from Labour) and Ynys Môn (a Labour Party gain from Plaid Cymru).

List of United Kingdom by-elections (1900–18): This is a list of parliamentary by-elections in the United Kingdom held between 1900 and 1918, with the names of the incumbent and victor and their respective parties.  Where seats changed political party at the election, the result is highlighted: pink for a Labour gain, light blue for a Conservative (including Liberal Unionist and Irish Unionist) gain, orange for a Liberal (including Liberal-Labour) gain, green for a Sinn Féin gain, light green for an Irish Parliamentary Party gain and grey for any other gain.

National Development Party (Brunei): The National Development Party ("Parti Pembanguan") is a political party in Brunei.  Although legally registered as a political party in Brunei, it has not been able to gain electoral representation as legislative elections have not been held in Brunei since 1962.  The party was founded on 12 September 2005 by former rebel and Secretary General of the banned Brunei People's Party, Yassin Affandi, aka Haji Muhammad Yasin bin Abdul Rahman, co-founded the Party, which is the third political party that is operating legally in Brunei to date.

List of United Kingdom by-elections (1950–79): This is a list of parliamentary by-elections in the United Kingdom, with the names of the incumbent and victor and their respective parties.  Where seats changed political party at the election, the result is highlighted: red for a Labour gain, blue for a Conservative gain, orange for a Liberal gain, yellow for a SNP gain, green for a Plaid Cymru gain and grey for any other gain.

Federation Party: The Federation Party was Fiji's first formal political party.  The Citizens Federation, which had won three of the four seats reserved for Indo-Fijians at the 1963 elections, decided to formalize its role as a political party, which was officially founded on 21 June 1964 with A. D. Patel as President and Sidiq Koya as Vice-President.  The merger took place in time for the party to participate in the 1965 constitutional conference which was called to map out a path towards independence from the United Kingdom.  In 1968, the Federation Party merged with the National Democratic Party to form the National Federation Party, which is now (2015) the oldest political party in Fiji still in existence.

Sandeep Dikshit: Sandeep Dikshit (born 15 August 1964) was a member of the 15th Lok Sabha of India.  He represented the East Delhi constituency of Delhi and is a member of the Indian National Congress (INC) political party.

Supporting paragraphs: Sandeep Dikshit Indian National Congress
Answer: Great Britain