The territories mentioned in Rigveda were divided into various tribal principalities. These tribal principalities were ruled by tribal kings. Some of them are mentioned in lines mentioning Dasrajan Yoddha or the battle of ten kings that was fought between Sudas, a Bharat King of Tritsu family and confederacy of ten other tribal kings. Tribes Region Aryan Tribes Bharatas Saraswati-Yamuna Puru Saraswati Yadu & Turvasa Southern Punjab Gandhara North-West of India Matsyas Rajasthan Chedis Malwa Srinjaya Punjab Bhalanas Bolan Pass Paktha Basin of Kurram Vaikarnas ..read more

Bathua (Chenopodium album) is a popular plant weed that is also part of diet in several South Asian Countries Weeds are “out of place” plants in cultivated areas, kitchen gardens, lawns and other areas of domesticated plant growth. One can simply say that  Weeds are unwanted and undesirable plant that interfere with utilization of land and water resources and thus adversely affect crop production. Origin of Weeds Weeds are no strangers to mankind. They have been there ever since man first started to cultivate crops for his own needs around 10000 BCE and recognized as a problem ..read more

Sesbania Rostrata (image credit: b inxee) In agriculture, green manures refers to the plants or crops that are grown and turned into the soil to improve its quality. The green manure plants are cut and then plowed into the soil or they can be simply left in the ground for an extended period of time till tillage. Green manures also increase the efficiency of fertilizer use of crops when applied in combination with inorganic fertilizers. Green manuring was first practised in China around 1100 BC. In India, around 6.2 million has was reported under green manuring in 1989. Around 80 ..read more

Original Home of the Aryans Aryans are one of the earliest ethnic groups mentioned in Vedic texts along with Dasas. They are said to be the rulers of Aryavarta, the area encompassing present-day Northern Indian Subcontinent. Some scholars believe that Aryans were natives to  India while others believe that they migrated from outside. The first generation of Aryans was known as Rigvedic people. They lived around 1500 BC. They first settled around the Saptasindhu region, the present-day Punjab and Haryana region. Later they expanded to the Northern Gangetic plains. They knew about ..read more

Geological Structure of India/Source: NCERT The earth that we know today has evolved over a very long period of time. It is estimated that the earth is approximately 460 million years old. Over these years, it has undergone several changes brought about primarily by the endogenic and exogenic forces. The Indian Subcontinent was once part of a greater Indo-Australian plate. Over a course of 3-4 million years, the Indian and Australian plates have broken off and have started moving in different directions. Henceforth, one can say, the present geographical features of the Indian subcon ..read more

Map of India (Source: Wikipedia) India has an overall coastline of 7516.6 km with its mainland coastline measuring at 6100 km and rest is made up by its island territories. Coastal States of India Gujarat Maharashtra Goa Karnataka Kerala Tamil Nadu Odisha West Bengal Coastal Union Territories of India Dadra and Nagar Haveli and Daman and Diu Puducherry Andaman and Nicobar Islands (Bay of Bengal) Lakshadweep In terms of districts, there are 70 coastal districts in India. Out of which, 66 districts are on mainland, 3 in Andaman and Nicobar Islands and 1 in Lakshadweep. In terms ..read more

Map of India (Source: Wikipedia) The term "landlocked" means a landmass which does not share any border with any large water body or ocean. Though India is blessed with the coastline of 7516.6 km, there are some Indian states which do not have any direct access to the ocean. These Indian states are either sandwiched between two or more other Indian states or other Asian countries. Landlocked states of India (from West to East) Rajasthan Punjab Haryana Himachal Pradesh Uttarakhand Uttar Pradesh Madhya Pradesh Chhattisgarh Telangana Jharkhand Sikkim Assam Meghalaya Manipur Tripura M ..read more

India and its Neighbouring Countries Map (Image Source: NCERT) India - Land India's mainland extends from 8°4'N  to 37°6'N latitude and  68°7'E  and  97°25'E longitude. The distane between its northern and southern points is 3214 km and distance between eastern and western points is 2933 km. The tropic of cancer (23.5 N) divides India in almost two equal parts. The North India lies in temperate zone whereas South India lies in torrid zone. The tropic of cancer passes through 8 Indian states. These are Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Jharkhand, W ..read more

Map of Haryana It is a usual practice to name a village or town after a famous personality. In some cases, these places get their names after their founders or a person who lived in these localities. The towns and cities of Haryana are no exception, there are hundreds of cities which are named after some historical or mythological figure. Even, Haryana, itself is named after Lord Hari (Vishnu). District Named after Ambala Named after Goddess Amba Bhawani Bhiwani Named after Bhani Devi Charkhi Dadri Named after lake Dadri Faridabad Named after Sheikh Farid Fatehabad Na ..read more

A Dolmen in Mayaroor (Kerala) - Prehistory of Kerala - Image Source: Sanandkarunakaran There are several pre-historic and historic sites found in Kerala. One can trace the history of Kerala to the paleolithic age and its relationship with other cultural formations such as Indus Valley Civilization during the Bronze and early Iron age. The findings have been classified into Laterite rock-cut caves (Chenkallara), Hood stones (Kudakkallu), Hat stones (Toppikallu), Dolmenoid cists (Kalvrtham), Urn burials (Nannangadi) and Menhirs (Pulachikallu). In 1974, first paleolithic sites were dis ..read more