Introduction:
Rohan works as a clerk in a bank, while Sumit works as a labourer on a construction site. Both of them are engaged in different sectors of the economy, and their conditions of work significantly differ from each other. In this response, we will explore the differences in their work conditions and assess the benefits and drawbacks of working in their respective sectors.

Differences in Work Conditions:
1. Nature of Work:
- Rohan, as a bank clerk, is involved in administrative tasks, such as record-keeping, customer interactions, and financial transactions.
- Sumit, as a construction labourer, performs physical tasks like carrying heavy materials, operating machinery, and assisting in construction activities.

2. Skills and Qualifications:
- Rohan requires specific skills and knowledge related to banking and finance, such as computer literacy, mathematical proficiency, and understanding of banking operations.
- Sumit's work primarily relies on physical strength, endurance, and basic construction skills. Formal education is not a prerequisite for his job.

3. Working Hours:
- Rohan's work in the bank follows a fixed schedule, typically from 9 am to 5 pm, with weekends and public holidays off.
- Sumit's work on the construction site is often characterized by long and irregular hours, depending on the project requirements. Overtime work is common, and weekends and holidays may not be observed.

4. Job Security:
- Rohan enjoys relatively higher job security as a bank clerk. Banks are established institutions and are less prone to sudden closures or layoffs.
- Sumit's job security is comparatively lower as the construction sector is more susceptible to economic fluctuations and seasonal variations. If the construction project ends or there is a downturn in the industry, Sumit may face unemployment.

Benefits and Drawbacks:
1. Benefits of Working as a Bank Clerk:
- Stable income and job security.
- Opportunities for career growth and promotions.
- Access to employee benefits like medical insurance, pension schemes, and paid leaves.
- Regular working hours allow for better work-life balance.

2. Drawbacks of Working as a Bank Clerk:
- Monotonous work routine with limited physical activity.
- Limited scope for creativity and innovation.
- High competition for entry-level positions.
- The pressure of meeting targets and handling customer complaints.

3. Benefits of Working as a Construction Labourer:
- Physical work helps in maintaining fitness and strength.
- Exposure to various construction techniques and skills.
- Flexibility in terms of work location and project assignments.
- Possibility of earning higher wages through overtime and additional work.

4. Drawbacks of Working as a Construction Labourer:
- Job insecurity due to the nature of the industry.
- Physically demanding work, which can lead to fatigue and injuries.
- Lack of formal training and limited opportunities for career advancement.
- Unstable working hours and irregular income, especially during off-seasons.

In conclusion, Rohan's work as a bank clerk offers stability, career growth, and employee benefits, while Sumit's work as a construction labourer involves physical exertion, flexibility, and potential for higher wages. However, both sectors have their drawbacks, such as monotony in banking and job insecurity in construction. It is crucial for individuals to choose a sector based on their skills, interests, and long-term goals.