ORA-12541: TNS:no listener ( ERROR coming when one node of RAC database is off

[agrawaltanu1]

Here is my client's tnsnames.ora file.
-----------------------------------

# tnsnames.ora Network Configuration File: f:\oracle\product\10.2.0\client_2\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.

tns_tg_db_primary =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.20)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = tgorcl2)
)
)

ORCLRAC =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = tgvirtualtwo-vip)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = tgvirtualone-vip)(PORT = 1521))
(LOAD_BALANCE = yes)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orclrac.tgvirtual)
)
)