Question: What is the name of the wife of the second Dalit to be elected President of India?

Context articles: Dayal Bahadure
B. Krishnappa
Savita Kovind
Rashtriya Dalit Prerna Sthal and Green Garden
Ram Nath Kovind
Joseph D'souza
Dalit Kisan Dal
Navayana
Namantar Shahid Smarak
Jharna Das

Dayal Anandrao Bahadure (born 5 July 1958) was All India National President of Bhartiya Dalit Panther Party.
 Now, he is All India National Secretary of the Republican Party of India (Athvale).
 He has previously been involved with the Dalit Panther movement.
Prof. B. Krishnappa (1938–1997) was born in Madiga Community, in Harihara,Davangere District.His father name is Dasappala Basappa and mother Chowdamma.His family was his strength.he is a pioneer of the Dalit literary movement in Kannada and the founder president of Dalit Sangarsha Samiti, the radical Dalit advocacy group.
 He taught at the Sir M. Vishweshwariah College in Bhadravathi for thirty years before retiring as principal.
 He is acknowledged as an important literary critic.
Savita Kovind is the First Lady of India from 25 July 2017.
 She is the wife of the President of India Ram Nath Kovind.
 Previously, Suvra Mukherjee, wife of the former President Pranab Mukherjee had been the occupant of this unofficial title, until her demise in 18 August 2015.
The Rashtriya Dalit Prerna Sthal and Green Garden ("National Dalit Inspiration Place and Green Garden") is a memorial in Noida, Uttar Pradesh, India.
<ref name="http://www.hindustantimes.com/ 2016"> </ref> It was commissioned by Chief Minister of Uttar Pradesh Mayawati and inaugurated on 14 October 2011.
Ram Nath Kovind (born 1 October 1945) is an Indian politician who is the President of India, in office since 2017.
 Previously he served as Governor of Bihar from 2015 to 2017 and was a Member of Parliament, Rajya Sabha from 1994 to 2006.
 He was a leader of the Bharatiya Janata Party (BJP).
 Kovind was nominated as a presidential candidate by the ruling NDA coalition and won the 2017 presidential election, becoming the second Dalit to be elected to the post of President.
 He assumed office on 25 July 2017.
Joseph D'souza is an Indian activist for Dalit rights, As of 2012, he was International President of the Dalit Freedom Network (DFN) and President of the All India Christian Council (AICC).
 On 30 August 2014, he was consecrated as Moderator Bishop of the Good Shepherd Church of India.
Dalit Kisan Dal (Dalit Peasants Party), is a political party in Punjab, India.
 The party was formed as a splinter group from Lok Bhalai Party 2001, when activists from LBP in Khamano, Machhiwara, Ropar and Samrala broke away.
 As of 2001 the general secretary of DKD was Bhinder Singh Ranwan, and the party president was Iqbal Singh Kapurthala.
 The party claims to fight for better conditions for peasants and dalits.
Navayana (Devanagari: नवयान, IAST: "Navayāna") means "new vehicle" and refers to the re-interpretation of Buddhism by B.R. Ambedkar.
 Ambedkar was born in a Dalit (untouchable) family during the colonial era of India, studied abroad, became a Dalit leader, and announced in 1935 his intent to convert from Hinduism to Buddhism.
 Thereafter Ambedkar studied texts of Buddhism, found several of its core beliefs and doctrines such as Four Noble Truths and Anatta as flawed and pessimistic, re-interpreted these into what he called "new vehicle" of Buddhism.
 This is known as Navayana, also known as Bhimayāna after Ambedkar's first name Bhimrao.
 Ambedkar held a press conference on October 13 1956, announcing his rejection of Theravada and Mahayana vehicles, as well as of Hinduism.
 Thereafter, he left Hinduism and adopted Navayana, about six weeks before his death.
The Namantar Shahid Smarak (English: Name Change Martyrdom Memorial) is a large memorial sculpture dedicated to those who died in the Namantar Andolan.
 The Namantar Andolan was a 1978 to 1994 movement in India by Dalits (formerly known as Untouchables) who wanted to rename a university in honour of a leading Dalit, B. R. Ambedkar.
 The movement was vigorously opposed by members of the Hindu community.
 During 16 years of struggle, there were murders, torture, rapes, burning of colonies, poisoning of wells, property damage, boycotts and lockouts.
 In 2013, 19 years after the movement’s success, the city government of Nagpur erected this monument in memory of the valour and the sacrifice of Dalit martyrs.
Jharna Das is an Indian politician from the Communist Party of India (Marxist).
 She is a Member of the Parliament of India, representing Tripura in the Rajya Sabha.
 She was elected unopposed in March 2010.
 Das is a member of the Tripura State Committee of the CPI(M).
 Before being elected to parliament, she served as the chairperson of the State Social Welfare Board.
 Das is the first Dalit to be elected to the Rajya Sabha from Tripura, and the second woman representing the state in the Rajya Sabha.