Thank you Lal, for clarifying this.
I was under the wrong impression that the panchakkhanda for a particular bhava is destroyed at the end of a bhava.
However, I may have got confused between the panchakkhanda and the manomaya kaya.
I guess it is the Hadaya vatthu and the relevant pasada rupa for that bhava that is destroyed at the end of the bhava.
Would you kindly be able to clarify the relationship between the panchakkhanda and the hadaya vatthu + pasada rupa, or please direct me to a relevant post?