HDFC Ltd informed Indian bourses about the HDFC twins merger citing, "Further to our earlier intimation made today, wherein we had informed that Saturday, July 1, 2023, would be the 'Effective Date' of the Scheme and the fixation of various record dates, we also wish to inform that the window for trading in the securities of the Corporation would be closed with effect from Saturday, July 1, 2023 and shall continue to remain closed up to Record Date i.e. up to Thursday, July 13, 2023 (for determining the shareholders of the Corporation who shall be issued and allotted the shares of HDFC Bank), for all the employees, designated employees and directors of the Corporation including their immediate relatives, in terms of the SEBI (Prohibition of Insider Trading) Regulations, 2015."