Candidates would need to ensure that they fulfil the eligibility criteria to apply for the examination. The authority has laid down the following eligibility criteria have been given in the following points:-

• Candidates of India or subject of Nepal or subject of Bhutan or Tibetan refugee. Other than these citizens will not be able to apply for the examination.
• The minimum age for the candidate is the age of 21 years and the maximum age of the candidate is 32 years.
• The upper age limit for the post of Hydrologist will be 35 years as on the first day of the January month of the year in which candidate is applying for the examination.
• Candidates should be physically fit according to physical standards specified for appearing to the entrance test
• The educational qualifications of the candidates are as follows: