Introduction:
The Rashtriya Krishi Vikas Yojana (RKVY) is a flagship scheme of the Government of India that aims to promote agricultural growth and development in the country. It was launched in 2007-08 and is implemented by the Ministry of Agriculture and Farmers Welfare.

New Sub-scheme:
Under the Rashtriya Krishi Vikas Yojana, a new sub-scheme has been introduced to address specific agricultural challenges and opportunities. The correct answer to the given question is option 'D', which states that all the above options (a), b), and c)) are new sub-schemes under the RKVY. Let us discuss each of these sub-schemes in detail:

1. Bringing Green Revolution to Eastern Region:
This sub-scheme aims to bring about a sustainable increase in agricultural productivity and overall development in the eastern region of India. The eastern states of India, such as Bihar, West Bengal, Odisha, and Jharkhand, have immense agricultural potential but lag behind in terms of productivity. This sub-scheme focuses on improving irrigation infrastructure, promoting the use of high-yielding varieties of seeds, adopting modern farming techniques, and enhancing the availability of credit and other inputs to farmers in the region.

2. Special Programme on Oil Palm Area Expansion:
The objective of this sub-scheme is to promote the cultivation of oil palm in suitable agro-climatic regions of the country. Oil palm is a high-yielding crop that can be used for the production of edible oil, biofuels, and industrial products. This sub-scheme provides financial assistance to farmers for establishing oil palm plantations, setting up processing units, and creating infrastructure for the production and marketing of oil palm products.

3. Accelerated Fodder Development Programme:
This sub-scheme aims to address the shortage of fodder for livestock in the country by promoting the cultivation of high-quality fodder crops. Livestock plays a crucial role in the rural economy and contributes significantly to agricultural productivity. The Accelerated Fodder Development Programme focuses on increasing the availability of nutritious fodder through the adoption of improved varieties, efficient production techniques, and better management practices. It also aims to enhance the income of farmers engaged in livestock rearing and promote sustainable livestock development.

Conclusion:
The introduction of these new sub-schemes under the Rashtriya Krishi Vikas Yojana reflects the government's commitment to addressing specific agricultural challenges and promoting inclusive and sustainable growth in the agricultural sector. By focusing on regions with untapped potential, promoting the cultivation of high-value crops, and addressing the fodder shortage for livestock, these sub-schemes aim to enhance agricultural productivity, improve farmers' income, and contribute to overall rural development in the country.