I have never read anything to suggest that either the MiG-29K or the Su-33 was designed to use steam catapults. The catapults on the Ulyanosk were intended for its Yak-44 AEW aircraft. Its fighters were meant to use a ski jump, as is evident from the model itself.

More like it’s been dicussed as a possibility. Regardless, both are getting to old. India is looking to the future. (i.e. 5th Gen)