It is believed that Kashyapa gave birth to Adityas, with his wife Aditi, who went on to become Devtas in the present manvatara which is the 7th.
Where was Rishi Kashyap in the first 6 manvataras and which events was he involved in if he only gave birth to Adityas in the 7th manvatara?
Or did Adityas have any existence before this manvatara before becoming the Devtas?
Please mention the source along with your answer.