And while the titles clearly identify the function of Zarka's quirky subjects, the drawings themselves are intentionally ambiguous, appearing simultaneously representational and abstract.
The bulk of the exhibition was devoted to decorative geometric patterns that Zarka observed in the Abbey of Monte Oliveto Maggiore, near Siena, Italy.
Parmdeep was a Sikh while Zarka came from a strict Muslim family and it was their religious difference that irked Zarka's father Abdul Rashid.
'I knew my son and Zarka were getting serious and I had no problem with the marriage but I accepted his decision, never once thinking the matter would escalate.'