(B) Labour contractors: Labour contractors can help Rajat to find skilled or unskilled labor quickly for the increased production of paper plates during Diwali. They often have a network of potential workers that they can tap into for temporary employment.

(C) Direct Recruitment: Rajat can directly advertise job openings and recruit individuals for the positions of labor required for increasing the production of paper plates. Direct recruitment can help in attracting candidates who are specifically interested in working for Rajat's company.

(E) Employment Exchange: Rajat can utilize the services of the employment exchange to find suitable candidates for the increased labor requirements. The employment exchange is a government initiative that matches the skills of job seekers with the requirements of employers, making it a useful source of recruitment for Rajat.

These sources can help Rajat to quickly and effectively recruit the labor he needs to meet the increased demand during Diwali. Hence, the correct answer is  (B), (C), and (E) Only.

•  Campus Recruitment: Colleges and institutes of management and technology have become a popular source of recruitment for technical, professional and managerial jobs. Recruitment from educational institutions is a well-established practice of businesses. This is referred to as campus recruitment.
•  Management consultancy firms help the organisations to recruit technical, professional and managerial personnel. They specialise in middle level and top level executive placements.