Hello Surya
The career prospects are quite good after pursuingM.Sc. in geology.
You can apply for combined geologists and geologists examination conducted by UPSC.
Students can apply for-

• GEOLOGIST
• METEOROLOGIST
• GEOGRAPHER
• OCEANOGRAPHERS
• PETROLOGY
• PALEONTOLOGY
• GEOPHYSICS
• MINING
• ENVIRONMENTAL EDUCATION
• RESEARCH
• FIELD STUDY

Students can also apply in institution like

• ESSAR OIL LIMITED
• CAIRN INDIA LIMITED
• CENTRAL GROUND WATER BOARD
• COAL INDIA LIMITED

Student can also apply in

• GEOLOGICAL SURVEY OF INDIA
• OIL & NATURAL GAS CORPORATION
• GSPC
• INSTITUTE OF HIMALAYAN GEOLOGY
• NATIONAL INSTITUTE OF OCEANOGRAPHY
• RELIANCE INDUSTRY LIMITED
• OIL INDIA LIMITED.

Goodluck I hope this information helps you