Among the 38 high-demand occupations eligible to apply for Canadian PR, looks like yours fall under the following occupation:

0213: Computer and Information Systems Managers

So, what you've got to do is read the description of this code 0213 in NOC website: http://www5.hrsdc.gc.ca/NOC/English/NOC/2006/QuickSearch.aspx?val65=0213

Your proof of work in Nepal can be a work-experience letter written by that company which shoudl contain various information (you shoudl read the guide on how to fill the application forms http://www.cic.gc.ca/english/pdf/kits/guides/EG7.pdf Make sure the job description and your responsibilities should have things mentioned in code 0213:

0213 Computer and Information Systems Managers

Computer and information systems managers plan, organize, direct, control
and evaluate the activities of organizations that analyze, design, develop,
implement, operate and administer computer and telecommunications software,
networks and information systems. They are employed throughout the public and
private sectors.

Example Titles

EDP (electronic data processing) manager
computer
systems manager
data centre manager
data processing
director
information systems manager
manager, data processing and systems
analysis
manager, management information system (MIS)
manager, software
engineering
software development manager
systems development
manager

View all
titles

Main duties

Computer and information systems managers perform some or
all of the following duties:

• Plan, organize, direct, control and evaluate the operations of information
  systems and electronic data processing (EDP) departments and companies
• Develop and implement policies and procedures for electronic data processing
  and computer systems operations and development
• Meet with clients to discuss system requirements, specifications, costs and
  timelines
• Assemble and manage teams of information systems personnel to design,
  develop, implement, operate and administer computer and telecommunications
  software, networks and information systems
• Control the budget and expenditures of the department, company or
  project
• Recruit and supervise computer analysts, engineers, programmers, technicians
  and other personnel and oversee their professional development and
  training.

Employment requirements

• A bachelor's or master's degree in computer science, business
  administration, commerce or engineering is usually required.

• Several years of experience in systems analysis, data administration,
  software engineering, network design or computer programming, including
  supervisory experience, are required.

Classified elsewhere

• Computer and information systems supervisors (in 217 Computer and Information Systems
  Professionals)
• Computer Engineers (Except Software Engineers and Designers) (2147)
  
• Computer Programmers and Interactive Media Developers (2174)
  
• Computer services company presidents (in 0013
  Senior Managers - Financial, Communications and Other Business Services)
  
• Database Analysts and Data Administrators (2172)
  
• Information Systems Analysts and Consultants (2171)
  
• LAN managers (in 2281
  Computer Network Technicians)
• Software Engineers and Designers (2173)