Bhopal, May 19 -- Exercise of franchise commenced amid tight security on Sunday in Indore, Dewas, Ujjain, Dhar, Khandwa, Khargone, Mandsaur and tribal-dominated Ratlam parliamentary constituencies of Madhya Pradesh's Malwa and Nimar regions under the state's fourth and final phase of these Lok Sabha polls.

The timings are 0700-1800 hrs. A total 82 candidates are in the arena and the 1,49,13,890-strong electorate includes more than 72.86 lakh women. The voting area-wise break-up of nominees is Indore 20, Dewas six, Ujjain nine, Dhar seven, Khandwa 11, Khargone seven, Mandsaur 13 and Ratlam nine. Polling centres number 18,411, official sources said.

The fortunes of several stalwarts of the Bharatiya Janata Party (BJP) and the Congress ar...