Hello Aanand Singh,
If you are looking for an absolute solution of Novel GroupWise to Exchange 2013 migration, then I would like to mention here a perfect professional application named as Kernel for NovelGroupWise to Exchange. By using this software, you can easily migrate
all emails of Nove GroupWise to Exchange without altering any data.
Try GroupWise to Exchange Software.
This software Features
A perfect solution to perform migration from Novell GroupWise environment to MS Exchange environment.
After performing accurate migration from Novell GroupWise to MSExchange Server, the software allows saving migrated user mailboxes in Exchange user profiles and newly-created MS Outlook PST files.
Facilitates migrating single as well as multiple Novell GroupWise mailboxes.
Migrates every item of Novell GroupWise user mailbox to Exchange including emails, contacts, calendars, Sent Items, Trash Items, documents, Check List, Unicode characters, Cabinet, Work in Progress, journals, notes, and appointments.
Completely supports conversion of archived email items of user mailboxes to Exchange mailboxes or PST files.
Displays preview of migrated email items before saving them (but this feature is applicable only in case of Single mailbox migration).
Offers an easy-to-use, self-descriptive, user-friendly graphical user interface that makes the entire email migration process a much easier task even for novice users.
Available as a free to download evaluation version that lets users evaluate its capabilities before purchasing its full version.
For more information and free download visit here http://groupwisetoexchange.blogspot.com