2nd Dec, 2020

C32-LH2 Tank: Biggest cryogenic propellant tank delivered to ISRO

The public sector aerospace manufacturing company, the Hindustan Aeronautics Limited (HAL) delivered the biggest cryogenic propellant tank C32-LH2 to the Indian Space Research Organisation.

The C32-LH2 tank is a developmental cryogenic propellant tank of aluminium alloy.

It is designed for improving the payload capability of GSLV MK-III launching vehicle of ISRO.

The tank can load 5755 kg propellant fuel. 

Cryogenic fuels

Cryogenic fuels are fuels that require storage at extremely low temperatures in order to maintain them in a liquid state.

These fuels are used in machinery that operates in space because ordinary fuel cannot be used there due to the very low temperatures often encountered in space, and due to absence of an environment that supports combustion.

Cryogenic fuels most often constitute liquefied gases such as liquid hydrogen.

Annapurna Idol to be brought back from Canada

An ancient idol of the goddess Annapurna, stolen from India about a century ago, is being brought back from Canada.

Annapurna is the goddess of food. 

The 18th-century idol, carved in the Benares style, is part of the University of Regina, Canada’s collection at the MacKenzie Art Gallery.

A few weeks ago, 13th-century old bronze idols of Lord Rama, Lakshmana and goddess Sita were handed to the Tamil Nadu government from the UK recently,.

Between 2014 and 2020, the government has been able to retrieve 40 antiquities from various countries.

Between 1976 and 2014, as per ASI records, 13 antique pieces had been repatriated to India.

Zebrafish being used as a research model to promote heart regeneration

Recently, Scientists at Pune-based Agharkar Research Institute have used the Zebrafish as a research model and identified genes that can promote heart regeneration.

Zebrafish is a tiny freshwater fish barely 2-3 cm long. 

It can efficiently regenerate its damaged heart within a short time period.

Zebrafish is found in the tropical and subtropical regions. 

The fish is native to South Asia’s Indo-Gangetic plains, where they are mostly found in the paddy fields and even in stagnant water and streams.

It is a popular aquarium fish, frequently sold under the trade name Danio.

The zebrafish is an important and widely used vertebrate model organism in scientific research, for example in drug development, in particular pre-clinical development.

It is also notable for its regenerative abilities and has been modified by researchers to produce many transgenic strains.

World AIDS Day 2020

The World AIDS Day is observed on 1st December every year all over the world.

It was founded in 1988 by the World Health Organization (WHO).

Theme for 2020: “Global solidarity, resilient HIV services.”

In 2019, 6,90,000 people died from HIV-related causes and 1.7 million people were newly infected, with nearly 62% of these new infections occurring among key populations and their partners.

AIDS is a pandemic disease caused by the infection of Human Immunodeficiency Virus (HIV), which damages the human immune system.

It is a chronic, potentially life-threatening condition.

By damaging immune system, HIV interferes with the body’s ability to fight infection and disease.

The virus can be transmitted through contact with infected blood, semen or vaginal fluids.

AIDS symptoms include weight loss, fever or night sweats, fatigue and recurrent infections.

No cure exists for AIDS.

Strict adherence to antiretroviral regimens (ARVs) can slow the disease’s progress and prevent secondary infections and complications.

Kiwis Of Ziro Valley

The kiwis that grow wild in Arunachal Pradesh’s Ziro Valley are the only certified organic fruit of their kind in India.

Arunachal Pradesh is the first State in India to obtain Organic Certification for Kiwi under Mission Organic Value Chain Development for North East Region (MOVCD-NER).

Ziro Valley is located in Lower Subansiri district.

Mission Organic Value Chain Development for North East Region (MOVCD-NER) 

It is a Central Sector Scheme.

It is a sub-mission under National Mission for Sustainable Agriculture (NMSA).

Launched by: Ministry of Agriculture and Farmers Welfare 

Implementation in: Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland,

Sikkim and Tripura, 

An agricultural practice/product is considered organic when there are no chemical fertilisers or pesticides involved in its cultivation process.

Such certifications in India can be obtained after strict scientific assessment done by the regulatory body, Agricultural and Processed Food Products Export Development Authority (APEDA).

China gives ‘go ahead’ for New Dam on Brahmaputra

Recently, China has given the go ahead for a Chinese hydropower company to construct the first downstream hydropower project on the lower reaches of the river Brahmaputra.

The state-owned hydropower company signed a strategic cooperation agreement with the Tibet Autonomous Region (TAR) government to implement hydropower exploitation in the downstream of the Yarlung Zangbo river as part of the new Five Year Plan (2021-2025).

This will be the first time the downstream sections of the river will be tapped.

The location of the planned project has not been mentioned anywhere.

This 50 km section alone offers a potential of developing 70 million kilowatt hours (Kwh).


It originates under the name of Siang or Dihang, from the Chemayungdung glacier of the Kailash range near the Mansarovar lake. 

It enters India west of Sadiya town in Arunachal Pradesh.

Tributaries: Dibang, Lohit, Siang, Burhi Dihing, Tista, and Dhansari.

It is a perennial river.

It has several peculiar characteristics due to its geography and prevailing climatic conditions.

It is flooded twice annually. 

One flood is caused by the melting of the Himalayan snow in summer and the other due to the monsoon flows.

The frequency of these floods has increased.

These floods are devastating due to climate change and its impact on high and low flows.

These pose a concern for the population and food security in the lower riparian states of India and Bangladesh.

The river is in itself dynamic as frequent landslides and geological activity force it to change course very often.

Cyclonic storm ‘Burevi’

The Deep Depression over southwest Bay of Bengal recently intensified into Cyclonic Storm ‘Burevi’.

The India Meteorological Department (IMD) announced that a cyclone brewing in the Bay of Bengal is likely to affect Tamil Nadu and Kerala, less than a week after cyclone Nivar wreaked havoc in the southern states.

The cyclone will cross the Sri Lanka coast on December 2 and bring heavy rain over Tamil Nadu and Kerala.

Aadi Mahotsav

Union Minister for Tribal Affairs launched the Aadi Mahotsav is a national tribal festival.

It is a joint initiative of Ministry of Tribal Affairs, Government of India & Tribal Cooperative Marketing Development Federation of India (TRIFED).

The Aadi Mahotsav initiative was commenced in 2017.

The festival showcases traditional art and handicrafts and cultural heritage of the country. 

It is an attempt to familiarise the people with the rich and diverse craft, culture of the tribal communities across the country, in one place.

Virtual edition of Aadi Mahotsav- Madhya Pradesh was recently launched. 

Ramayan Cruise Tour

 ‘Ramayan Cruise Tour’ on the Saryu river in Ayodhya will be launched soon.

Ministry: Ministry of Ports, Shipping and Waterways

The Sarayu is a river that originates in Uttarakhand. 

It flows through Uttar Pradesh in India. 

It is a tributary of the Sharda River.