Tax on dividend??

Y ltd in which 80% shares are held by G ltd. Y ltd declared a dividend amounting to rs 30 lacs to the shareholders for the financial year 2011-12 in its annual general meeting held on 18th may 2012. Dividend distribuion tax was paid by Y LTD on 20th May 2012. G ltd declared an interim dividend amounting to Rs 40 lacs on 1st december 2012 for the year ended 31st march 2013

Compute the amount of tax on dividend payble by G ltd.

What if 52% shares of Gltd are held by S ltd, an Indian company???