There are several specific Indian stratigraphic sequences mentioned in the syllabus for the UPSC exams. These sequences provide important information about the geological history of India and are crucial for understanding the formation and development of the Indian subcontinent. Here are some of the key stratigraphic sequences mentioned in the syllabus:

The Archaean Stratigraphic Sequence:
- The Archaean stratigraphic sequence represents the oldest rocks in India, dating back to more than 2.5 billion years.
- This sequence is characterized by the presence of various types of rocks, such as gneisses, schists, and granites.
- It contains important mineral resources like iron ore, gold, and chromite.

The Proterozoic Stratigraphic Sequence:
- The Proterozoic stratigraphic sequence comprises rocks that were formed between 2.5 billion and 541 million years ago.
- It includes the Dharwar system, which is known for its significant iron ore deposits.
- The Proterozoic sequence also contains the Vindhyan system, which is well-known for its sedimentary rocks, including sandstone, shale, and limestone.

The Palaeozoic Stratigraphic Sequence:
- The Palaeozoic stratigraphic sequence represents rocks that were formed between 541 and 252 million years ago.
- It includes the Gondwana system, which is characterized by the presence of coal-bearing rocks.
- The Gondwana system also contains important fossil records of flora and fauna, providing insights into the evolution of life on Earth.

The Mesozoic Stratigraphic Sequence:
- The Mesozoic stratigraphic sequence comprises rocks that were formed between 252 and 66 million years ago.
- It includes the Cretaceous system, which contains sedimentary rocks and fossil records of marine organisms.
- The Mesozoic sequence also includes the Deccan Traps, which are large volcanic rock formations and hold significant geological and paleontological importance.

The Cenozoic Stratigraphic Sequence:
- The Cenozoic stratigraphic sequence represents rocks that were formed in the last 66 million years.
- It includes the Siwalik system, which is known for its sedimentary rocks containing fossil records of mammals, including elephants, rhinoceroses, and primates.
- The Cenozoic sequence also contains important records of climate change and tectonic activity.

These Indian stratigraphic sequences are crucial for understanding the geological history, mineral wealth, and evolution of life in the Indian subcontinent. Studying these sequences helps geologists and researchers gain insights into the Earth's past and make informed decisions in various fields, such as mining, energy exploration, and environmental studies.