Lawson has been going through a rough time ever since her husband Charles Saatchi gripped round her throat.
“Nigella and Pierce seemed very happy to see one another and were engrossed in conversation after sitting down together for a chat,” a website quoted a source as saying.
"It was clear they both enjoyed the opportunity to share some time together,” he added.
The 'James Bond' star is married to Keely Shaye Smith.
Mumbai Roundup: 9 incidents that took place this week
Photos: Ajay Devgn, Parineeti, Tabu at 'Golmaal Again' trailer launch
Photos: Dipika Pallikal Karthik oozes oomph in bikinis and sarees
Photos: Kareena Kapoor Khan's grand birthday bash
Photos: 'Dangal' girls Sanya Malhotra, Fatima Sana Shaikh's dinner outing