Ancient inscriptions are usually dated in regnal years or eras. Many different eras were used in ancient and early medieval India.
In the light of the above statements which of following statements are correct?
(a) The Kalachuri-Chedi-era starts from 248 CE.
(b) The Gupta era starts from 319-20 CE.
(c) The Chalukya-Vikram era of 1076 was used in the inscriptions of Karnataka and adjoining areas.
(d) The Kollar era of 824 was used in the inscriptions of Kerala and adjoining parts of Tamil Nadu.

Choose the correct answer from the code given below:

Correct option is B

All the statements (a), (b), (c), and (d) are correct.

(a) The Kalachuri-Chedi-era starts from 248 CE. This era, also known as the Abhira era, was founded by the Abhira king Ishwarsena in 248-249 CE and was widely used in Western and Central India.
(b) The Gupta era starts from 319-20 CE. The Gupta era commenced with the ascension of Chandragupta I to the throne in 320 CE and was the official era of the Gupta Empire.
(c) The Chalukya-Vikram era of 1076 was used in the inscriptions of Karnataka and adjoining areas. This era was initiated by the Western Chalukya king Vikramaditya VI in 1076 CE and was used in the inscriptions of the Deccan, particularly Karnataka.
(d) The Kollar era of 824 was used in the inscriptions of Kerala and adjoining parts of Tamil Nadu. This is correct; the Kollam era (also known as the Malayalam era or Kollar era) started in 824 CE and was used in the Malabar region (Kerala) and some adjoining areas of Tamil Nadu.

Therefore, all the given statements are correct. The correct option from the code provided is (a), (b), (c) and (d).