No, according to Valmiki Ramayana, Sita Mata did not eat anything in Lanka. It is believed that Devraj Indra fed her a divine kheer, due to which she did not feel hungry or thirsty.
Some more things about Sita Mata's stay in Lanka:
- Ravana kidnapped Sita Mata from Panchvati and took her to Lanka.
- Sita Mata stayed in Lanka for 435 days.
- Devraj Indra removed the guard of the demons by mesmerizing them and putting them to sleep.
- Devraj Indra fed Sita Mata a divine kheer, which was called Payasam.
- This divine kheer had the power to satisfy hunger for ten thousand years.
- This kheer was considered equivalent to nectar.
