Bengaluru/New Delhi: Food delivery aggregators Swiggy and Zomato are starting to re-focus on their cloud kitchen strategies as restaurants start to open up, to resolve constraints faced amid the covid-19 crisis.Many restaurants are also exploring expansion through cloud kitchens with the dine-in business capped at 50% seating capacity leading to expectations of a surge in online orders as consumers remain wary of stepping out.The cloud kitchen business was deeply impacted by the lockdown, resulting in a sharp dip in order volumes.Zomato witnessed only 50% of its restaurant partners starting to deliver food on its platform compared to pre-covid levels, while rival Swiggy saw 25-40%, with more restaurants being operational in tier-1 cities..