EC officials confirmed the development on Sunday, saying a formal letter was issued in this regard on Saturday.
According to the Commission, the candidates concerned had failed to submit their election expense reports within the stipulated timeframe following the national polls.
The extension has been granted to allow them additional time to comply with the legal requirement of submitting returns on campaign expenditures.
Officials said the EC expects all pending candidates to submit their statements within the revised deadline.
The 21 candidates who have yet to submit their election expenditure statements include Mirza Md Shawkat Akbar of Bangladesh JP, who contested from Nilphamari-4; Habib Md Faruk of Bangladesh Jatiya Samajtantrik Dal (Bangladesh JASAD) from Lalmonirhat-1; Md Azizur Rahman of Jatiya Samajtantrik Dal (JSD) from Rangpur-2; and Sarkar Md Nure Ershad Siddiki of Gono Odhikar Parishad (GOP) from Kurigram-3.
Others include Nawab Md Shamsul Hoda of Bangladesh Islami Front and Md Abdul Halim of Bangladesh Cultural Muktijot from Chapainawabganj-1; independent candidate Md Moazzem Hossain from Natore-1; Md Ainur Rahman (Jewel) Mia of Gono Odhikar Parishad from Bhola-1; independent candidate Mohibullah Khokon from Bhola-2; and Md Ala Uddin of Amjanatar Dal.
Others include Md Abu Tayyab of Gono Odhikar Parishad and Md Kamal Uddin of Jatiya Party from Bhola-3; Abdul Kalam of National Democratic Movement (NDM) and Md Jalal Uddin Rumi of Amjanatar Dal from Bhola-4; Md Rafiqul Islam of Amar Bangladesh Party (AB Party) from Mymensingh-5; independent candidate Prof Md Jasim Uddin from Mymensingh-6; Md Liton of Bangladesh Republican Party (BRP) from Dhaka-14; Mushtaq Ahmed of Bangladesh Khelafat Majlis from Sunamganj-3; Md Enamul Haque of Nagorik Oikya from Chandpur-2; Mohammad Farid Al Alam of Bangladesh Jamaat-e-Islami from Chattogram-12; and Abu Saeed Md Sujauddin of National Citizen Party (NCP) from Bandarban.
In a letter signed by Deputy Secretary Md Monir Hossain of the Election Commission (EC), it was stated that candidates who failed to submit their election expenditure returns within the stipulated deadline were earlier given an extension until 6 May. However, as some candidates still did not submit their accounts within that period, the deadline has now been further extended until 14 June.
The 13th National Parliament election was held on 12 February, with the Election Commission publishing the official gazette the following day. Under the law, candidates are required to submit their election expenditure statements within 30 days of the gazette publication.
In line with this requirement, the EC on 25 February had initially requested all candidates to submit their expenditure reports by 15 March. Later, it was found that 92 candidates had not submitted their returns by 20 April. The deadline was then extended to 6 May, and has now been further extended for a second time to 14 June.
