Theory:

     One day Golu met the mynah bird sitting in the middle of a bush, and he asked her, “What does the crocodile have for dinner?” The mynah said, “Go to the banks of the great, grassy Limpopo river and find out.”
 
     Golu went home. He took a hundred sugar canes, fifty dozen bananas and twenty-five melons. Then he said to his family, “Goodbye. I’m going to the great, grassy Limpopo river. I’ll find out what the crocodile has for dinner.” He had never seen a crocodile, and didn’t know what one looked like.
Explanation:
 
One fine day, Golu came upon a Myna bird resting in a shrub. He then approached the bird and began talking to it. And, as is customary, Golu began by posing a question. Golu asked Mynah whether it knew what the crocodile would eat at dinner. But, he didn't get an answer from Myna. Instead, Myna told Golu to go to a Limpopo River and figure it out on his own, for it was where the crocodile resided.
 
The Limpopo River is an actual river and not fictional. The Limpopo River is South Africa's second-largest river, and it's in Africa's interior. It begins as the Krokodil (Crocodile) River in the Witwatersrand region of Southeast Africa and runs eastward to the Indian Ocean through Mozambique.

After talking with Myna, Golu returned home. He chose to go to the green Limpopo River to see the crocodile after some thought. So, he gathered a hundred sugar canes, fifty dozen bananas and twenty-five melons. He then bid his goodbyes to his family, informing them that he was off to Limpopo river in search of an answer for what a crocodile would eat for its dinner.
 
Meaning of difficult words:
 
S.No
Words
Meaning
1.
Bush/Shrub A plant that grows densely with several hard stems
Reference:
National Council of Educational Research and Training (2007). Supplementary. Golu Grows a Nose – Rudyard Kipling (pp.30-34). Published at the Publication Division by the Secretary, National Council of Educational Research and Training, Sri Aurobindo Marg, New Delhi.