Those are some really tiny flowers Ajoy.
Yes Marilynne. They are more of weed than plants, cropping up all across the grass in the gardens. I had a difficult time identifying them. Initially I ignored them, as they are so small. Then recently I thought of using my AIS macro lens to get an idea of their size.
One of them - where a bunch of yellow flowers appear at the end of the stems

is the wild version of Methi (Fenugreek), which we eat a lot in winters. The commercial version is a much bigger plant with slightly bigger leaves Its seeds are used in a lot of Indian cooking.
Now that I know what to look for I am finding a lot of extremely small flowers amongst the weeds. I have now realised that a 60mm macro lense would be ideal for shooting Alpine Flowers. So if I ever travel to the famous "Valley of Flowers" in the Himalayas, I will get the lens, preferably the "D" version as it is sharper and has less CA.