Ramesh,
We use the apache commons net package.
http://jakarta.apache.org/commons/net/ The code is simple to implement, here is a sample:
// Connect and logon to FTP Server
FTPClient ftp = new FTPClient();
ftp.connect(server);
ftp.login(username, password);
// Change to the directory
ftp.changeWorkingDirectory(folder);
FileInputStream src2 = new FileInputStream(outFile);
ftp.storeFile(filename,src2 );
src2.close();
ftp.logout();
ftp.disconnect();
Hope this helps,
Julia