Hi Pandeswara,
Follow the installation guide for BPC 10.
after installation run program UJT_MIGRATE_75_TO_10
in 7.5 there is a web server on a separate server, in BPC 10 SAP will take care of that function.
all you need to do if upgrade the BW server where BPC sits, activate BPC 10 environment shell, then run the program.
Andy