Have worked in 2diff projects in this appraisal period APR to Dec pjt 1 and from Jan in Pjt 2 who will provide me the band for this cycle

You will get the band from the PE2 project

Though you worked longer in project 1, project2 will only give the band.

It's the discussion with the unit head, wherever you hv spent more time, wil take the ownership

Project 2 Jan.

This same situation happened to me. P1 had to close the project end appraisal. Then, P2 will do their appraisal. An aggregate is taken, but the band will be decided by P2