So now, you can see that the "site1" is working as you arrive to the "multisite" website.
So that solve your issue that you have initially mentioned concerning the impossibility to have a reply from your server because the "index.php" was not found.
You can start to have a look in JMS to define the slave site.
Becarefull that for the moment, JMS recognize the port http (80) and https (443).
I can not guarantee you that it will be able to parse correctly the port (8180).
Perhaps Yes or Perhaps No.
Perhaps you should define the JMS slave site domain like
csd.bodhtree.co.in/site1
Put both domain (with and without) the port.