The correct answer is option 'E' - All of the above.

Rajendra I was a prominent ruler of the Chola dynasty in South India, who reigned from 1014 to 1044 CE. He was the son of Rajaraja Chola I and ascended to the throne after his father's death. Rajendra I was known for his military conquests and maritime expeditions, which expanded the Chola Empire to its greatest extent.

One of the titles assumed by Rajendra I was "Gangaikonda." This title was given to him after his successful conquest of the Ganges River region, which led to the establishment of the Chola rule over that area. The title "Gangaikonda" translates to "one who conquered the Ganges" and signifies his military achievements.

Another title assumed by Rajendra I was "Mudikonda." This title refers to the Chola king's victory over the Chalukya king and his capital, Vengi. The title "Mudikonda" means "one who conquered the capital" and highlights his conquest of the Chalukya kingdom.

Additionally, Rajendra I was also referred to as "Kadarangoda." This title signifies his victory over the Kadaram (present-day Malaysia) region. The Chola Empire under Rajendra I's rule had a strong naval force, and they conducted successful maritime expeditions, including the conquest of Kadaram.

Lastly, the title "Panditichola" is not associated with Rajendra I. It is not a recognized title of the Chola king.

In conclusion, Rajendra I, the Chola king, assumed the titles "Gangaikonda," "Mudikonda," and "Kadarangoda" in recognition of his conquests and achievements. The correct answer is option 'E' - All of the above.