Two methods of data collection that Rayan can use effectively are:

1. Surveys
2. Interviews

Surveys:
Surveys are a popular method of data collection that can be used to collect quantitative data from a large number of respondents. Rayan can create a survey questionnaire that is specifically designed to collect information from respondents residing in Gujarat, Sikkim, and Maharashtra. The survey can be administered either online or offline, depending on the availability of internet connectivity in the target areas. Some of the advantages of using surveys for data collection are:

- Surveys are relatively easy to administer and can be completed quickly by respondents.
- Surveys can be used to collect large amounts of data from a large number of respondents.
- Surveys can be used to collect both qualitative and quantitative data.

Interviews:
Interviews are another effective method of data collection that can be used to collect qualitative data from respondents residing in Gujarat, Sikkim, and Maharashtra. Rayan can conduct interviews either face-to-face or over the phone. Interviews are particularly useful when Rayan wants to collect detailed information from respondents. Some of the advantages of using interviews for data collection are:

- Interviews allow Rayan to collect detailed information from respondents.
- Interviews can be used to collect both qualitative and quantitative data.
- Interviews can be conducted in a variety of languages to accommodate respondents who may not speak English.

Conclusion:
In conclusion, Rayan can use surveys and interviews effectively to collect data from respondents residing in Gujarat, Sikkim, and Maharashtra. Surveys can be used to collect quantitative data from a large number of respondents, while interviews can be used to collect qualitative data from a smaller number of respondents. By using both methods of data collection, Rayan can collect comprehensive data that can be used to draw meaningful conclusions about the target population.