Step 1: Understanding the Concept:
Sanskrit literary tradition mandates that a 'Mahakavya' (epic poem) or a 'Nataka' (drama) must begin with a 'Mangalacharana' (auspicious invocation). This opening verse or verses serve to invoke blessings, offer salutations to a deity or revered figure, or indicate the subject matter of the work. Among Kalidasa's great epics, one famously dedicates its very opening to a majestic and personified description of the Himalaya mountains, which is not merely a geographical detail but a thematic introduction to the entire work.
Step 3: Detailed Explanation:
The Mahakavya that begins with a magnificent description of the Himalayas as its 'Mangalacharana' is Kalidasa's 'Kumarasambhava'.
The very first verse of the epic establishes this:
\[ \text{Astyuttarasy\bar{a}m di\acute{s}i devat\bar{a}tm\bar{a} him\bar{a}layo n\bar{a}ma nag\bar{a}dhir\bar{a}ja\d{h} |} \]
\[ \text{P\bar{u}rv\bar{a}parau toyanidh\bar{i} vag\bar{a}hya sthita\d{h} p\d{r}thivy\bar{a} iva m\bar{a}nadanda\d{h} ||} \]
Translation: "In the northern direction, there is a divine-souled mountain, named Himalaya, the king of mountains, stretching between the eastern and western oceans, standing as if it were the measuring rod of the earth."
This 'Vastu-nirdeshatmaka Mangalacharana' (invocation through indicating the subject matter) immediately sets the stage for the epic. The 'Kumarasambhava' (meaning 'The Birth of Kumara', referring to Kartikeya, the war-god) narrates the story of Goddess Parvati (daughter of Himavan, the personified Himalaya) and her penance to win Lord Shiva as her husband, ultimately leading to the birth of Kumara who vanquishes the demon Taraka. Thus, the Himalayas are not just a backdrop but are intrinsically linked to the parentage of the heroine and the divine narrative. Kalidasa devotes the entire first canto to a detailed and sublime description of the Himalayas, portraying them as a living, divine entity.
Let's look at the Mangalacharanas of the other options:
1. Shishupalavadha (Magha): This epic begins with a description of Lord Krishna and the descent of the sage Narada: "Shriyah patih shrimati shashitum jagat..." (The Lord of prosperity, to rule the prosperous world...). It is a Namaskaratmaka Mangala (salutation to Krishna).
2. Kiratarjuniya (Bharavi): This epic commences with the report of a spy (Vanechara) regarding Duryodhana's just rule to Yudhishthira: "Shriyah kurunam-adhipasya palinim..." (The ruler of the Kurus' prosperity...). This is a Vastu-nirdeshatmaka Mangala.
3. Naishadhiyacharita (Shriharsha): This work begins with praise for King Nala: "Nipiya yasya kshiti-rakshina-katham..." (Having heard the story of that protector of the earth...). It is also Vastu-nirdeshatmaka.
The distinctive and grand opening focusing on the Himalayas is a unique feature of Kalidasa's 'Kumarasambhava', showcasing his poetic genius in integrating setting with theme from the very first verse.
Step 4: Final Answer:
The description of the Himalayas is found at the very beginning (Mangalacharana) of 'Kumarasambhava'. Therefore, Option (D) is the correct answer.