Hi Sakthi,
first of all 7 days for indexing is very much. Do you have so much objects in the orgmanagement? Indexing takes for the most of my customers between 1 and 10 hours.(Sometimes below 1 hour)
There is a dependency between the connectors you mentioned above. So maybe in fact there is only on connector with an error. Please go to esh_cockpit and select the HRTMC_CENTRALPERSON and drill down into the physical Indexes. Check which index has an error. If it is e.g. HRTMC_PERSON you can reindex only this one. This is not so timeconsuming..
best regards
Martin