The AC Nielsen-Outlook poll was conducted in 89 constituencies across 16 states between January 24 and February 1, 1998. Face to face interviews were carried out with 16,312 respondents. In each Lok Sabha seat three assembly constituencies were covered and a minimum of six villages and three towns were covered. The constituencies covered by the poll:
Andhra Pradesh: Anakapalli, Eluru, Ongole, Kurnool, Nagarkurnool, Nizamabad, Peddapalli.
Assam: Naogaon, Lakhimpur. .
Bihar: Bettiah, Siwan, Muzaffarpur, Kishanganj, Begusarai, Sasaram, Koderma, Ranchi, Singhbhum. .
Delhi: East Delhi, Delhi Sadar, Karol Bagh.
Gujarat: Jamnagar, Amreli, Sabarkantha, Dohad, Bharuch.
Haryana: Kurukshetra, Mahendragarh, Rohtak. .
Karnataka: Bellary, Bangalore North, Chamarajanagar, Mangalore, Dharwar North, Bijapur. .
Kerala: Kozhikode, Mukundapuram, Alapuzha, Thiruvananthapuram.
Madhya Pradesh: Bhind, Sagar, Rewa, Raigarh, Mahasamund, Jabalpur, Khandwa, Indore. .
Maharashtra: Rajapur, Mumbai (South Central), Mumbai (North Central), Dhulia, Buldhana, Washim, Ramtek, Chimur, Bhir, Pune.
Orissa: Kendrapara, Bolangir, Keonjhar, .
Punjab: Amritsar, Phillaur, Sangrur.
Rajasthan: Churu, Dausa, Tonk, Jalore. .
Tamil Nadu: Chennai North, Krishnagiri, Coimbatore, Karur, Mayuram, Tirunelveli.
Uttar Pradesh: Bijnore, Rampur, Sitapur, Mohanlalganj, Sultanpur, Gorakhpur, Jaunpur, Robertsganj, Allahabad, Jalaun, Hathras, Hapur.
West Bengal: Jalpaiguri, Calcutta South, Jadavpur, Bankura.
