Hi @ARJUN,
You may want to indicate which version of OMP you’re working from (e.g. 3.3.0-14), as that may help others to help you with this. Also, our theming guide gives some good advice on how to go about developing a theme, if you haven’t seen it yet: https://docs.pkp.sfu.ca/pkp-theming-guide/
Best regards,
Roger
PKP Team