Need help on uri redirection i-rule

I would first highly recommend throwing all of those URIs into a data group. So if you did that, you might try something like this:

when HTTP_REQUEST {
   if { [string tolower [HTTP::uri]] starts_with "/irj/go/km/docs/documents/AxisBank" } {
      return
   } elseif { [class match [string tolower [HTTP::uri]] starts_with my_uri_dg] } {
      HTTP::redirect "https://straight2axis.axisbank.co.in/irj/portal"
   }
}