when was the second political party established?
23 January 1977
Creation
 The Janata party was officially launched on 23 January 1977 when the Janata Morcha, Charan Singh's Bharatiya Lok Dal, Swatantra Party, the Socialist Party of India of Raj Narain and George Fernandes, and the Bharatiya Jana Sangh (BJS) joined together, dissolving their separate identities (the merger of all party organisations was to be completed after the election). 
who was the first president of india to be elected unopposed Neelam Sanjiva Reddy was he involved in freedom struggle? Yes, he joined the Indian struggle for independence. which other political posts did he have? President of the Indian National Congress, Union Minister of Steel and Mines, Union Minister of Transport, Civil Aviation, Shipping and Tourism, speaker of the Lok Sabha, etc. which political party was he associated with? Indian National Congress Party in the Indian independence movement and Janata Party as a candidate for Parliament.
23 January 1977 23 January 1977 23 January 1977.
Janata Party Janata Party Janata Party
Creation Creation Creation
The Janata party was officially launched on 23 January 1977 when the Janata Morcha, Charan Singh's Bharatiya Lok Dal, Swatantra Party, the Socialist Party of India of Raj Narain and George Fernandes, and the Bharatiya Jana Sangh (BJS) joined together, dissolving their separate identities (the merger of all party organisations was to be completed after the election). The Janata party was officially launched on 23 January 1977  The Janata party was officially launched on 23 January 1977
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Janata Party [SEP] Creation
The most significant was that of Jagjivan Ram, who commanded great support amongst India's Dalit communities. A former Minister of Defence, Ram left the Congress (R) and along with his supporters formed the Congress for Democracy on 2 February 1977. Other co-founders included the former Chief Minister of Orissa Nandini Satpathy, former Union Minister of State for Finance K. R. Ganesh, former MP D. N. Tiwari and Bihar politician Raj Mangal Pandey.