All the statements accurately reflect the announcements made in the Union Budget 2023-24:
(a) MISHTI Initiative: The 'Mangrove Initiative for Shoreline Habitats & Tangible Incomes' (MISHTI) aims to undertake mangrove plantations along India's coastline and on salt pan lands through convergence between MGNREGS, CAMPA Fund, and other sources. 
(b) Green Credit Programme: The Budget proposed a Green Credit Programme to be notified under the Environment (Protection) Act. This program is designed to incentivize environmentally sustainable and responsive actions by companies, individuals, and local bodies, encouraging behavioral change. 
(c) Amrit Dharohar Scheme: The Amrit Dharohar scheme is set to be implemented over the next three years. Its objective is to encourage the optimal use of wetlands, enhance biodiversity, increase carbon stock, promote eco-tourism opportunities, and generate income for local communities.