Sdmc — sdmc property tax site not working

I have neem trying to access this site https://mcdonline.nic.in/sdmcportal/service
To pay my property tax for the past couple of weeks. Every time i get this message:
This site can’t be reachedmcdonline. Nic.in took too long to respond.
Try:

Checking the connection
Checking the proxy and the firewall
Running windows network diagnostics
Err_connection_timed_out

Please help!!