Ken Betwa link ILR is on verge of being cleared. It will take 7 years to build. Phase 1 is Rs 18,000cr & Phase 2 is Rs 2,300cr (see link 1). National Board of Wildlife retained the dam height, as submergence was seasonal and had minimal effect, except for a loss of 10,500 ha tiger habitat. To recompense, it required 3 separate sanctuaries be integrated to a tiger reserve, to form a viable (roaming) corridor for the tigers.

Future of Inter-state ILR
These 3 are relatively straightforward projects. All can finish in 7 yrs.
1. Par-Tapi-Narmada link ILR and
2. Damanganga-Pinja projects ILR
3. Chambal-Kalisindh ILR: MP wants it entirely within.
link: Union Water minister's Q&A

Nepal is keen to set up hydroelectric projects. Both parties benefit.
4. Sapta-Kosi dam with Kosi-Ghagra link ILR & flood control. "Sapta-Kosi dam is a 269 meter high (883 feet) concrete dam with a capacity of 3,300 MW at a 50 percent load factor. When completed, it is expected to irrigate 300,000 hectares of farm land both in Nepal and the Indian State of Bihar," (see link 2).

Two others being discussed (see link 3). Meetings or negotiations held with West Bengal and Odisha.
5. Mahanadi-Godavari link ILR: Odisha. Reworked to reduce submerged land to win Odisha approval. Crucial and mother ILR.
6. Manas-Sankosh-Teesta-Ganga ILR: Assam, Bihar & West Bengal. DPR next with WB consent. Crucial and mother ILR.

Intra-state ILR
46 proposals of intra-state links received by NWDA from nine states. DPRs for a few have been taken up (see link 5):
1. Burhi Gandak- Noon-Baya-Ganga links of Bihar (done)
2. Kosi-Mechi link of Bihar   (done)
3. Ponnair-Palar link of Tamil Nadu
4. Wainganga-Naganga link of Maharashtra
5. Barakar-Daodar-Subernarekha link of Jharkhand
6. Vamsadhara-Rushikulya link of Odisha

Ken Betwa Phase 1 gets wildlife clearance - The Economic Times