Constituencies in Assam, Bihar, Chhattisgarh, Jammu and Kashmir, Maharashtra, Manipur, Odisha, Tripura, Uttar Pradesh and West Bengal will also go to the polls in the first phase.
The first phase will see interesting battles in all the states going to the polls and will decide electoral fate of sitting Chief Ministers, several Union Ministers and some senior leaders from different parties.
Elections for all 25 Lok Sabha and 175 assembly seats in Andhra Pradesh will be held simultaneously on April 11.
In Telangana, elections will be held on all 17 seats in the first phase.The ruling Telangana Rashtra Samiti is hoping to sweep the polls in alliance with Asaduddin Owaisi-led AIMIM, who is aiming for a fourth consecutive win from the Hyderabad Lok Sabha seat.
In eight western Uttar Pradesh constituencies the ruling BJP will clash with the newly-formed SP-BSP-RLD alliance.
Polling in Uttarkhand's five Lok Sabha seats will be completed on April 11.
In Odisha four Lok Sabha and 28 assembly seats, including several naxal-hit areas, are going to polls.
In Assam, Tezpur, Kaliabor, Jorhat, Dibrugarh and Lakhimpur constituencies will vote in the first phase.
Seven seats in Maharashtra, four in Bihar and two each in West Bengal, Jammu and Kashmir, Meghalaya and Arunachal Pradesh will see polling in the first phase.
Lone Lok Sabha seats going to polls on April 11 include Mizoram, Tripura, Manipur, Chhattisgarh Nagaland, Sikkim, Andaman and Nicobar, and Lakshadweep.
Number of seats which will go to polls in phase one on Lok Sabha Election on 11 April:
Uttar Pradesh: Saharanpur
Uttar Pradesh: Kairana
Uttar Pradesh: Muzaffarnagar
Uttar Pradesh: Baghpat
Uttar Pradesh: Bijnor
Uttar Pradesh: Meerut
Uttar Pradesh: Ghaziabad
Uttar Pradesh: Gautam Buddha Nagar
Bihar: Aurangabad
Bihar: Jamui
Bihar: Gaya
Bihar: Nawada
Maharashtra: Wardha
Maharashtra: Ramtek
Maharashtra: Nagpur
Maharashtra: Bhandara-Gondiya
Maharashtra: Gadchiroli-Chimur
Maharashtra: Chandrapur
Maharashtra: Yavatmal-Washim
Uttarakhand: Tehri Garhwal
Uttarakhand: Garhwal
Uttarakhand: Almora
Uttarakhand: Nainital-Udhamsingh Nagar
Uttarakhand: Haridwar
Andhra Pradesh: Aruku
Andhra Pradesh: Srikakulam
Andhra Pradesh: Vizianagaram
Andhra Pradesh: Visakhapatnam
Andhra Pradesh: Anakapalli
Andhra Pradesh: Kakinada
Andhra Pradesh: Amalapuram
Andhra Pradesh: Rajahmundry
Andhra Pradesh: Narsapuram
Andhra Pradesh: Eluru
Andhra Pradesh: Machilipatnam
Andhra Pradesh: Vijayawada
Andhra Pradesh: Guntur
Andhra Pradesh: Narasaraopet
Andhra Pradesh: Bapatla
Andhra Pradesh: Ongole
Andhra Pradesh: Nandyal
Andhra Pradesh: Kurnool
Andhra Pradesh: Anantapur
Andhra Pradesh: Hindupur
Andhra Pradesh: Kadapa
Andhra Pradesh: Nellore
Andhra Pradesh: Tirupati
Andhra Pradesh: Rajampet
Andhra Pradesh: Chittoor
Telangana: Adilabad
Telangana: Peddapalle
Telangana: Karimnagar
Telangana: Nizamabad
Telangana: Zahirabad
Telangana: Medak
Telangana: Malkajgiri
Telangana: Secunderabad
Telangana: Hyderabad
Telangana: Chevella
Telangana: Mahbubnagar
Telangana: Nagarkurnool
Telangana: Nalgonda
Telangana: Bhongir
Telangana: Warangal
Telangana: Mahabubabad
Telangana: Khammam
Arunachal Pradesh: Arunachal West
Arunachal Pradesh: Arunachal East
Assam: Tezpur
Assam: Kaliabor
Assam: Jorhat
Assam: Dibrugarh
Assam: Lakhimpur
West Bengal: Coochbehar
West Bengal: Alipurduars
Odisha: Kalahandi
Odisha: Nabarangpur
Odisha: Berhampur
Odisha: Koraput
Jammu and Kashmir: Baramulla
Jammu and Kashmir: Jammu
Meghalaya: Shillong
Meghalaya: Tura
Manipur: Outer Manipur
Mizoram: Mizoram
Nagaland: Nagaland
Sikkim: Sikkim
Tripura: Tripura West
Andaman and Nicobar Islands: Andaman and Nicobar Islands
Lakshadweep: Lakshadweep
Chhattisgarh: Bastar