• The book 'Mother India' was published in 1927.
• It was a polemical book by the American author Katherine Mayo.
• In her book, She attacked society, religion and culture of India.
• The book pointed to the treatment of India's women, the untouchables, animals, dirt, and the character of its nationalistic politicians.
• Katherine Mayo was an American researcher and historian.

• “Losar” or The New Year festival, is the most important festival of Tawang District in Arunachal Pradesh.

• Monpa Tribe celebrate this festival in Arunachal Pradesh.

• The Monpas are the major portion of the population in the Tawang region of Arunachal Pradesh.

• Losar is also noted to be the most important festival for Tibetan Buddhism in Ladakh.

•  "United by Emotion" has been chosen as the motto of the 2020 Tokyo Olympics.

•  The official motto of the games is "Citius, Altius, Fortius" (meaning Faster, Higher, Stronger).

•  The 2020 Summer Olympics has been postponed due to the COVID-19 and will be held from 23 July 2021 to 8 August 2021 at New National Stadium, Tokyo, Japan.

Beighton cup is associated with hockey. It is one of the oldest field hockey tournament running till date. It was instituted in 1895 and is organised by Bengal hockey association.

‘Operation Pawan’ was the code name assigned to the operation by the Indian Peace Keeping Force (IPKF) to take control of Jaffna from the Liberation Tigers of Tamil Eelam (LTTE), better known as the Tamil Tigers, in late 1987 to enforce the disarmament of the LTTE as a part of the Indo-Sri Lanka Accord.
India was successful in this operation and took control of the Jaffna Peninsula from the LTTE.

* Pung Cholam is a dance form of Manipur. This dance may be performed by men or women.

* In this dance form, the dancers play the musical instrument Pung simultaneously with dancing. Dancer maintains graceful expressions and at the same time maintains body postures and balance.

* Pung cholam borrows elements from the Manipuri martial arts Thang-Ta and Sarit Sarak and also from the traditional Maibi Jagoi dance.

* Other dances of Manipur are- Manipuri dance, Nupa Pala dance, Khamba Thoibi dance, Rass Leela, etc.

Humayun's Tomb is located in Delhi, India.
• It was built in 1570.
• It was inscribed as a UNESCO World Heritage Monument in 1993 for its cultural importance.
• It was built in 1569–1570 by the second Mughal Emperor Humayun's widow Hajji Begum.

• The first Nobel Prize in Physics was awarded to Wilhelm Conrad Röntgen in 1901. He was a German mechanical engineer and physicist.

• He produced and detected electromagnetic radiation in a wavelength range known as X-rays.

• Sucheta Kriplani was India's first woman Chief Minister.

• She served as the head of the Uttar Pradesh government from 1963 to 1967.

• She was the fourth chief minister of Uttar Pradesh.

• The Indus System is one of the largest river basins in the world.

• The Indus is also known as the Sindhu.

• It originates from a glacier near Bokhar Chu in the Tibetan region.

• It enters into Pakistan near Chillar in the Dardistan region.

• Indus River System is made of the Indus River and its tributaries viz. Ravi, Beas, Satluj, Jhelum, Kishenganga (Neelum) and Chenab.

• The Chenab is the largest tributary of the Indus.

• It is formed by two streams, the Chandra and the Bhaga, which join at Tandi near Keylong in Himachal Pradesh.

• Hence, it is also known as Chandrabhaga.