BENGALURU/NEW DELHI : Food delivery aggregators Swiggy and Zomato are renewing focus on their cloud kitchen strategies as restaurants start to open up amid the covid-19 pandemic.Many restaurants are also exploring expansion through cloud kitchens with the dine-in business capped at 50% seating capacity and expect online orders to see a surge as consumers remain wary of stepping out.The cloud kitchen business was deeply impacted by the covid-led lockdown, resulting in a sharp dip in order volumes.Compared to pre-covid levels, Zomato witnessed only 50% of its restaurant partners starting to deliver food on its platform, while rival Swiggy saw around 25-40%, with more restaurants being operational in tier-1 cities.These food-tech unicorns are.