NEWS:Port economy will drive India’s growth, says PM, 

GS-3: Infrastructure – Ports, Roads, Airports, and Railways

• PM Modi commissioned the ₹8,800-crore Vizhinjam International Deepwater Seaport in Kerala, India’s first dedicated container transshipment port.
• The port was developed through a public-private partnership (PPP) model by Adani Ports in coordination with the Kerala government.
• Modi emphasized that port-led development will be central to driving India’s maritime and economic growth in the coming decade.

• A transshipment deepwater seaport is a port that can handle large ships that carry cargo from one place to another.
• It has a deep water channel and a large berth area for loading and unloading goods. It also allows the transfer of cargo from one ship to another at the port.

 Vizhinjam International Seaport Project

• The Vizhinjam International Transhipment Deepwater Multipurpose Seaport is an ambitious project taken up by the Government of Kerala.
  • It is designed to primarily cater to the transshipment and gateway container business with provision for a cruise terminal, liquid bulk berth and facilities for additional terminals.
• The port is currently being developed with a Public Private Partnership , with Adani Ports Private Limited with a component structured on a design, build, finance, operate, and transfer (“DBFOT”) basis.
• It is strategically situated near Thiruvananthapuram, Kerala. Its location along the southern coast of India provides easy access to international shipping routes.
  • It is positioned to compete with global transshipment hubs like Colombo, Singapore, and Dubai, reducing the cost of container movement to and from foreign destinations.
• The port boasts a natural depth of more than 18 meters, which can be further scaled up to 20 meters.
  • This depth is crucial as it enables the port to accommodate large vessels and mother ships with substantial cargo capacities.
• Initial capacity in the first phase is set at one million (twenty-foot equivalent units)TEUs, with potential for expansion to 6.2 million TEUs.

NEWS:Row escalates as Centre advises Punjab to release 4,500 cusecs of water to Haryana for eight days, 

GS-3: Water Resources Management, Interstate River Water Disputes Act

• The Centre has directed Punjab to release 4,500 cusecs of water from the Bhakra Dam to Haryana for eight days to meet emergency water needs.
• The decision was taken under the chairmanship of Union Home Secretary and involves coordinated actions by Punjab, Haryana, and Rajasthan officials.
• Punjab government has opposed the move, calling it high-handed and politically motivated.
• BBMB (Bhakra Beas Management Board) will provide Punjab equivalent water during the dam filling period to offset the release.

 the Bhakra Beas Management Issue

• The BBMB regulates water distribution from major dams like Bhakra, Pong, and Ranjit Sagar across Punjab, Haryana, and Rajasthan.
• The recent decision instructs Punjab to release 4,500 cusecs to Haryana to tackle its urgent irrigation and drinking water needs.

the Beas Project

• The Beas-Satluj link scheme consists of a 76.2 m high rockfill diversion dam at Pondoh on Beas River in Mandi district (HP).
• Pong is a multipurpose earth & rockfill dam on Beas River, 40 km from Mukerian, Mukerian District, Himachal Pradesh. It is located in the Himalayan foot-hills downstream of Pandoh dam. BBMB commissioned the project in 1978-83.

the Features of the Bhakra Nangal Dam

• Bhakra Dam is a concrete gravity dam across the Sutlej River and is near the border between Punjab and Himachal Pradesh in northern India.
• It is India’s second tallest at 225.55 m high next to the 261m Tehri Dam.
• Its reservoir, known as the “Gobind Sagar”, stores up to 9.34 billion cubic meters of water.
• Nangal dam is another dam downstream of Bhakra dam. Sometimes both the dams together are called Bhakra-Nangal dam though they are two separate dams.

NEWS:Indian scientists help develop brain-computer interface aiding paralysed patients

GS-3: Science and Technology — Robotics, Biotechnology, Artificial Intelligence, Medical Innovation

• Indian-origin researcher Nikhilesh Natraj and UCSF team developed a Brain-Computer Interface (BCI) allowing a paralysed man to control a robotic arm via imagined movements.
• The system worked for months with minimal recalibration, representing a major leap in assistive tech for neurological disabilities.
• Sensors read neural signals from the brain’s movement centres, decoding imagined movements into robotic actions.
• Demonstrated potential for real-world tasks like opening cabinets and using dispensers — crucial for independent living.

Brain–Computer Interface (BCI)

• It is a system that determines functional intent – the desire to change, move, control, or interact with something in our environment – directly from brain activity.
  • In other words, BCIs allow controlling an application or a device using only our mind.
  • Using a BCI skips over the need to have voluntary control of your muscles to interact with devices around you. It replaces the execution of a physical movement.
• It has three main parts:
  • A device to detect and record signals coming from the brain.
  • A computer to process and analyze the recorded brain activity.
  • An application/device to control.
• Another important part of a BCI is feedback: The system must somehow let the user know what decision or intended action the computer was able to interpret.
• Types of BCIs:
  • Non-Invasive: In it, sensors are placed on the scalp to measure the electrical potentials produced by the brain.
    • E.g. Electroencephalography (EEG), Functional Magnetic Resonance Imaging (fMRI) etc.
  • Semi-invasive: The electrodes are placed on the exposed surface of the brain.
    • E.g. Electrocorticography (ECoG) which is the process of recording electrical activity in the brain by placing electrodes in direct contact with the cerebral cortex or surface of the brain.
  • Invasive: Chips/Sensors are placed directly into the cortex, measuring the activity of a single neuron.
    • E.g. Neuralink’s Implant.

NEWS:Listing of castes will be the first challenge in Census, say experts

GS-2: Governance — Census, Policy Formulation, Affirmative Action

• A caste census involves enumerating India’s population based on caste categories. While Scheduled Castes (SCs) and Scheduled Tribes (STs) have been recorded in every census since 1951, data on Other Backward Classes (OBCs) and sub-castes has been absent, leaving critical gaps in policymaking and affirmative action initiatives.
• Constitutional Mandate:

Historical Background

1. Colonial Era:
   • First caste census in 1871-72.
   • Last caste data collected in 1931 under British rule.
2. Post-Independence:
   • Socio-Economic and Caste Census (SECC) of 2011: Identified over 46.7 lakh caste/sub-caste groups but faced significant data inconsistencies.

Mains Question:
“What are Brain-Computer Interfaces (BCIs) and how do they work? Discuss their potential for transforming medical rehabilitation and the ethical challenges they pose.”