Answer:
The answer is :
Indirect Speech
Dev declared that they were going to Mahabaleshwar tomorrow.
Raj exclaimed gladly that Mahabaleshwar is a wonderful place. He added that he had went there last year.
Dev questioned him that would he like to join them.
Raj replied that he would but only if everyone agreed.
Dev said that he would check with them and would call him the next day.
Raj thanked him and said that he would look forward to Dev's call.