Theory:

     YOU may have heard the name of Tansen — the greatest musician our country has produced.
 
     A singer called Mukandan Misra and his wife lived in Behat near Gwalior. Tansen was their only child. It is said that he was a naughty child. Often, he ran away to play in the forest, and soon learnt to imitate perfectly the calls of birds and animals.
 
     A famous singer named Swami Haridas was once travelling through the forest with his disciples. Tired, the group settled down to rest in a shady grove. Tansen saw them.
Explanation:
 
This story 'Tansen' is about the greatest legendary figure of India. Tansen was a great musician. His father was a singer whose name is Mukandan Misra. Tansen lived along with his parents in Behat near Gwalior. He was the only child of his beloved parents. He remained to be a very naughty person when young. He spent his childhood days playing in the forest located nearby his place. This gave him an option to practice imitating the calls of birds and animals.  He spent days playing inside the forest and imitating the voice of the birds and animals. He excelled in imitating the calls of birds and animals in this way.

There came a day when Swami Haridas, a well-known singer, happen to travel through the forest. He reached the forest along with his disciples. They seemed to be very tired of travelling for long hours all the way to the forest.  So, they wanted to take a rest for some time in the forest under the trees. They felt it would give them relaxation for a while. And, while they had rest, Tansen notices them.
 
Meaning of difficult words:
  
S.No
Words
Meaning
1.
Legendary
Well known, remarkable figure
2.
Naughty
Refers to a badly behaving child
3.
Imitate
Refers to copying something
4.
Curiosity
Strong desire to learn or find something
5.
Disciple
Student or a follower of someone, especially a famous person
6.
Grove
Refers to a small group of trees
7.
Excelled
Doing something really well
Reference:
National Council of Educational Research and Training (2006). Tansen (pp. 15-19). Published at the Publication Division by the Secretary, National Council of Educational Research and Training, Sri Aurobindo Marg, New Delhi.