What are the top 5 mega projects of India in the future?

Significance : Tallest statue in world
Cost : 2800 crores
Elevation :212 m
Foundation : 24 December 2016
Expected Completion : 2021.
The Shiv Smarak or the Chhatrapati Shivaji Maharaj Memorial is a monument under-construction dedicated to Shivaji, the 17th century Indian warrior king and founder of the Maratha Empire. The statue will be located in the Arabian Sea, near the coast of Mumbai city in the Indian state Maharashtra.
It will Surpass the STATUE OF UNITY to become ths tallest statue in the world.
Significance : Tallest religious monument in world
Cost : 300 crores
Elevation : 169.77 m
Foundation : 16 November 2014
Expected Completion : 2024
Vrindavan Chandrodaya Mandir is the world's tallest temple under-construction at Vrindavan, Mathura, India. When completed, it will be the tallest religious monument in the world. At cost of ₹300 crore it will be one of the most expensively built temples in world by ISKCON Bangalore.
3. Char Dham Expressway National Highway
Cost : 12000 crores
Length : 719 km
Date of Foundation : 27 December 2017
Char Dham Expressway National Highway is a proposed two-lane (in each direction) express National Highway with a minimum width of 10 metres in the state of Uttarakhand. The proposed highway will compliment the under development Char Dham Railway by connecting the four holy places in Uttarakhand states includes Badrinath, Kedarnath, Gangotri and Yamunotri The project includes 900 km national highways will connect whole of Uttarakhand state.
4. Chenab Bridge
Significance : World’s highest rail bridge
Total length : 1,315 m
Date of Foundation : 2004
The Chenab Bridge is a railway steel and concrete arch bridge under construction between Bakkal and Kauri in the Reasi district of Jammu and Kashmir in India. When finished, the bridge will span the Chenab River at a height of 359 m above the river, making it the world's highest rail bridge.
5. Mumbai Trans Harbour Link
Significance : longest sea bridge in India.
Total length :21.8 kilometres (13.5 mi)
Construction cost: ₹14,262 crore(US$2.0 billion)
Foundation : 20 April 2018
Expected completion: 2022
The Mumbai Trans Harbour Link, also known as the Sewri-Nhava Sheva Trans Harbour Link, is an under-construction 21.8 km, freeway grade road bridge connecting the Indian city of Mumbai with Navi Mumbai, its satellite city. When completed, it would be the longest sea bridge in India.