Hi Shalabh,
the reason for dump might be because of metadata of transformation contains invalid data or refernces.
First search for transformation id from dump. You can find the same from me->p_objname in dump.
Then check the corresponding transformation has any inconsistencies or not. You can check this by placing the transformation id in program "RSTRAN_ROUT_RSFO_CHECK" from se38 with inputs transformation id , objvers = 'M' and simulate checkbox selected . Find the errors and correct it.
After you successfully identified errors through program then only use repair mode checkbox.
After this try to import the request and check. Hope this helps.
Srikanth.