Here's your 5-point cheatsheet:
Mr Singh, whose father was instrumental in setting up the BJP's foundational base in Manipur, is an MLA from Nambol constituency under Bishnupur district.
His wife, Dr Romabai Lairenjam, holds an MD from a top medical college in Madhya Pradesh, and has worked in Delhi's RML Hospital. She later joined local politics after she was elected chairperson of the Bishnupur panchayat.
Mr Singh served in the Indian Police Service (IPS) till his retirement. He did MA in History from St Stephen's College under Delhi University in 1987, and an LLB from Manipur University in 2002.
Many see the BJP leader who has wide acceptance within the party as a strong candidate against the Congress's Inner Manipur debutant Dr Angomcha Bimol Akoijam, who teaches in Delhi's Jawaharlal Nehru University (JNU).
He is also seen as a leader who usually keeps a low profile, avoids getting into controversies, and speaks more through actions. His other key rival in this election is Maheshwar Thounaojam of the Republican Party of India (Athawale).
Featured Video Of The Day
Blanket Of Smog Covers Delhi, Air Quality Remains "Severe"
Congress Candidates Leading In Both Lok Sabha Seats In Manipur BJP Asks Poll Body To Reject Inner Manipur Congress Candidate's Papers Over Affidavit Row BJP Names 3 More Candidates For Lok Sabha Polls, Drops All Sitting MPs Elon Musk Replies To 'We Need Your Help Removing Trudeau' Post Aligarh Muslim University A Minority Institution? Supreme Court's Key 4:3 Verdict Chaos In Jammu And Kashmir Assembly Again Over Resolution For Article 370 China's Maths "Prodigy" Cheated To Ace The Global Contest, Probe Finds Australian Outlet That Interviewed S Jaishankar Responds To Canada's Ban Queen Elizabeth's 1947 Wedding Cake Slice Auctioned For Rs 2.40 Lakh Track Latest News Live on NDTV.com and get news updates from India and around the world.