Jaswant Singh, who was a minister in the BJP-led Atal Bihari Vajpayee government, hails from Barmer but was denied ticket by the BJP in the last Lok Sabha elections.
Jitendra Singh had been a minister of state for home during the UPA government.
The party's latest list has 19 candidates for Rajasthan and six each for Uttar Pradesh and Gujarat.
With this, the number of total candidates announced by the party for the Lok Sabha polls has reached 293.
In Rajasthan, the party has fielded forer Union minister Jitendra Singh from Alwar, senior leaders Ramnarayan Meena from Kota, Savita Meena from Dausa (ST), Jyoti Khandelwal from Jaipur, Namo Narayan Meena from Tonk-Sawai Madhopur and Jyoti Mirdha from Nagaur, among others.
In Gujarat, the party announced Jagdish Thakor from Patan and Lalit Kagathara from Rajkot, among others.
In Uttar Pradesh, it fielded Maj. JP Singh (Retd) from Sambhal and Niaz Ahmed from Deoria and Pankaj Niranjan from Phulpur.
The voting for Lok Sabha elections are set to begin on April 11. The counting of votes for all the states will take place on May 23.