BNP Secretary General Khandaker Delwar Hossain yesterday said the time is ripe for the party men to stand corrected and undergo self-realisation and reflection, if needed. "We have to think about what we say; if they are right or wrong; we have to take a vow to rectify our mistakes, if any," Khandaker Delwar said at a discussion at the Jatiya Press Club. Jatiyatabadi Samajik Sanskritik Sangstha (Jasas) organised the meeting to mark the 73rd birth anniversary of late president Ziaur Rahman. Delwar dismissed any involvement of Ziaur Rahman with the brutal killing of Bangabandhu Sheikh Mujibur Rahman on August 15, 1975. Speaking as the chief guest the BNP leader said Ziaur Rahman played a role to bring Sheikh Hasina back to her motherland and then Ziaur Rahman was assassinated within a few days of her coming back.