Input credit on both units

A company have a two units I & II, but separately accounts maintained but GST number is same. A supplier raised GST invoice to unit-I name, address and GST Number but expense invoice covered both units, how to get GST input, I'll doubt for two units are split to account their expenses and mention same invoice number or one unit was fully account the expense, who was responsible for getting GST input credit pls advise
Example: Telephone Bill

by R G RAMAKRISHNAN