@ Ganeshanand sankar I have been encountering a similar issue, the 'parent company' doesn't see any numbers.
I believe this may be a bug - so will post a bug report to odoo support, but I found that going to user preferences (in the top right hand corner) and clicking apply - the left pane shows blank, but the numbers now show up correctly.
Quite a strange one.
EDIT: It is not a bug - It has something to do with the company specific fiscal year/periods which are automatically being selected when you first click 'Chart of Accounts'. The parent company will most likely have access to all of the child companies fiscal years/periods, so if you remove data from these 3 fields (Fiscal Year, Periods 'to' and 'from') then it will gather postings from all companies and the consolidation accounts will display correctly.
I had exact same requirement, do you had steps to do this ? or its not possible in odoo !? 9