I want to get alert based on multiple indicators combined..currently tradingview supports alert based on only one condition.

They suggest use pine editor but how do I combine multiple source codes (indicators) ?

There is a public chat group on TV and one just for pine script. I would help you but I'm not too good at pine. I'd suggest asking in the pinescript chat group on TV. Or you could send a PM to some people who are developing scripts and see if they can help you out. I needed some coding assistance a while back and just sent PM's to several people and got the help I needed.