Hi Amit,
It always helps to give extra details about your environment, such as which client you are using (Java, Python, ...) and on which environment (Windows?).
But anyways, according to other people's experiences, you may want to check if your Db2 libraries are accessible on the client (i.e. in the PATH).
Check this article, for example:
https://github.com/ibmdb/python-ibmdb/issues/599
Hope this helps :-)