The President Ram Nath Kovind accompanied by the First Lady exercised their democratic franchise in Delhi.
He casted his vote at the Dr Rajendra Prasad Sarvodaya Vidyalaya, within the Rashtrapati Bhavan complex earlier in the sixth phase of the Lok Sabha elections.
On Sunday, 59 constituencies across six states and one union territory votes to seal the fate of 979 candidates.
Voting will take place for 14 seats in Uttar Pradesh, 10 in Haryana, eight seats each in West Bengal, Bihar and Madhya Pradesh, seven in Delhi and four in Jharkhand.
The following are some of the key constituencies and battles with its crucial candidates that will go to the polls in phase 6.
Key contestants: Gautam Gambhir (BJP), Atishi Marlena (AAP), Arvinder Singh Lovely (Congress)
Key contestants: Akhilesh Yadav (SP), Dinesh Lal Yadav 'Nirahua' (BJP)
Key contestants: Digvijay Singh (Congress), Sadhvi Pragya Singh Thakur (BJP)
Key contestants: Narendra Singh Tomar (BJP), Ram Niwas Rawat (Congress)
Key contestants: Jyotiraditya Scindia (Congress), K.P. Yadav (BJP)
Key contestants: Maneka Gandhi (BJP), Sanjay Singh (Congress)
Key contestants: Rita Bahuguna Joshi (BJP), Rajendra Pratap Singh (SP), Yogesh Shukla (Congress)
Key contestants: Radha Mohan Singh (BJP), Akash Singh (RLSP)
Key contestants: Dushyant Chautala (JJP), Bhavya Bishnoi (Congress), Brijendra Singh (BJP)
Key contestants: Deepender Singh Hooda (Congress), Arvind Sharma (BJP), Dharamvir (INLD)
Key contestants: Bhupinder Singh Hooda (Congress), Ramesh Chander Kaushik (BJP), Digvijay Chautala (JJP), Surender Chhikara (INLD)
Key contestants: Manoj Tiwari (BJP), Sheila Dikshit (Congress), Dilip Pandey (AAP)
Key contestants: Harsh Vardhan (BJP), Jai Prakash Agarwal (Congress), Pankaj Gupta (AAP)
Key contestants: Ramesh Bidhuri (BJP), Vijender Singh (Congress), Raghav Chadha (AAP)