Keeping in view the growing advancements in the field of Science and Technology, the government has revised the recruitment and promotion process of Scientists in different central government departments.  Changes have been made to the Flexible Complementing Scheme related to the recruitment and promotion of scientists. The decision to introduce changes in the recruitment process was introduced after various requests by central government ministries and departments. As per new agency PTI, the Flexible Complementing Scheme (FCS) for scientists, which existed in some of the scientific ministries/departments of the government of India, was modified and instructions on Modified Flexible Complementing Scheme (MFCS) were issued by the Personnel Ministry in September 2010. This was done based  on the recommendations of the sixth Central Pay Commission (6th CPC).  These guidelines are not applicable to Defence Research and Development Organisation (DRDO) and Departments of Atomic Energy and Space, where the scientists are governed by another scheme called merit based promotion scheme.