Srimad-Bhagavatam is the ripe, mature fruit of the Vedic knowledge, and Tulsidas’s Ramayana (Ramacharitmanasa) is but a partial representative of Srimad-Bhagavatam. The real Ramayana is Valmiki’s Ramayana. Tulsidas was a devotee of Lord Rama and he has given his thoughts in his book Ramayana. But the real original thoughts and ideas are in Srimad-Bhagavatam.

Srila Prabhupada, Letter to: Professor Kotovsky — Moscow 24 June, 1971