Where did Radharani appear and on which flower?

In which month srimati Radharani was found by Vrishbhanu in Lotus?

A name of Radharani which means:she is the queen of rasa dance

She is expert in Dancing and Singing that's why Her another name is:

She is very expert in Joking and speaking pleasently. This quality is called

Her seva is to offer betel nuts to RadhaKrishna.Who is she?

She offers water to drink to the divine couple.

Radharani's pet swan is

Radharani's pet cow is

who is Radharani's sister?

Her seva is to offer clothes and ornaments to Radha-Krishna