Explanation:

GAIL India Limited have handed over responsibility of carrying out research work on development of CNG stations to MECON Limited.

MECON Limited, formerly known as Metallurgical & Engineering Consultants (India) Limited is a Public Sector Undertaking under the Ministry of Steel of the Government of India. It began in 1959 as the Central Engineering and Designing Bureau (CEDB) of the Hindustan Steel Limited (HSL), the first public sector steel company.