Hi,
My kids have out grown the bike baby seat which they enjoyed right from as early as 1 year to 6 years.
The specs are on the decathlon site here
https://www.decathlon.in/p/8364731/cycling-baby-seat/500-bclip-bike-frame-baby-seat[except mine attaches to a pannier and not to the frame]
I am attaching a few pics here. It attaches to the pannier and is very comfortable and safe for kids, can take up to 22kgs.
Let me know if anyone in the group finds this useful.
Thanks,
Manoj Bhat