Introduction:
In indirect speech, we report what someone said without using their exact words. We need to make changes to the verb tense, pronouns, and adverbs of time and place. Let's convert the given sentence from direct speech to indirect speech.

Steps to convert the sentence into indirect speech:

1. Identify the reporting verb:
- In this sentence, there is no reporting verb mentioned. We can assume that the speaker is reporting the conversation.

2. Identify the tense changes:
- Since the event has already occurred, we need to change the verb tense from present to past.

3. Change the pronouns:
- We need to change the pronouns according to the subject of the reported speech. In this case, "Ram and Shyam" will be changed to "they."

4. Change the adverbs of time and place:
- The adverbs of time and place in the reported speech should be changed according to the context of the reported speech.

Conversion:

The direct speech sentence "Ram and Shyam played football in the field" can be converted into indirect speech as follows:

"They played football in the field."

Explanation:
- In the indirect speech, we reported the conversation without using the exact words.
- The tense of the verb "played" changed from present to past, as the event already occurred.
- The pronouns "Ram and Shyam" changed to "they" according to the subject of the reported speech.
- Since there were no specific adverbs of time and place mentioned in the original sentence, we did not make any changes in that aspect.

Conclusion:
Converting direct speech into indirect speech requires changing the verb tense, pronouns, and adverbs of time and place. In this example, we changed the present tense verb "played" to past tense, replaced the pronouns "Ram and Shyam" with "they," and retained the adverbs of time and place as they were not specified in the original sentence.

Football was played by Ram and Shyam in the field