Sai,
I gave you a link to the instructions. As SAP's support portal is secured, it would be against the terms of use for me to post their document here, as well as against SCN terms.
Depending on what SP you are on, there may also be corrections applicable. We are on SP12 (plus a lot of corrections from SP13 and SP14), and we had missing entries in GRACEUPCONFIG despite re-transporting the EUP config. SAP recommended implementing the corrections in Note 1713880, followed by another manual retransport.
EUPs seem to be a bit dodgy, but they work for us, mostly, except for a few remaining issues with multi-user requests and portal group provisioning.
Gretchen