Reva thinks fro a while and then google it, she wanted to know how to make him happy. Three are advice like to make a person happy, sing a song for them, gift them something, kiss him or her, give them hug , pay bill for them, tells them jokes etc.
Reva read lots of things and decided to as much as she can, from grandpa she got to know Mahednra's favorite dish, and from internet and doctor she already get a perfect diet for him. So she decided to make mugdal ki khichdi for him. With that, they are going to eat some pickle and some papad.
She also read some one liner jokes to tell him. She also decided to buy flowers for him, after all who don't like to see them, it just she is quite confuse about which flower to choose, Reva personally likes roses, but if she gives him red roses then he might misunderstand it, she don't like white roses very much, so in the end she decided to buy yellow roses for him.