Babaji's family, with the help of experts, had accessed the Facebook and email accounts of the dead model, from which they obtained a bulk of exchanged text messages between Vora and Babaji.
In the photographs, Vora is seen holding Babaji in his arms by a poolside and at a party.
"There is a photographic evidence which signifies the relationship of Gautam Vora and Viveka as a couple in love," said Dave Bhagwagar, Babaji's cousin.
"The police are investigating and the family wants Gautam Vora to be honest about what happened in their last meeting. That was the deciding factor in whatever happened," he added.