Restore INST_TOP if it is deleted or corrupted accidently?

Below steps to restore the INST_TOP if it is deleted or corrupted without using adcfgclone.

Step 1: 

If we have CONTEXT_FILE backup then we can easily restore (follow  step-2). If CONTEXT_FILE is not there then need to follow below steps to restore CONTEXT_FILE.

  perl /clone/bin/adclonectx.pl retrieve 

Step 2:

Once we restored CONTEXT_FILE then run the auto-config using below script. It will recreate INST_TOP without using adcfgcolne.

Run AutoConfig using: "perl $AD_TOP/bin/adconfig.pl contextfile=<CONTEXT_FILE>" command and it will create the $INST_TOP