Panini is widely regarded as the father of Sanskrit grammar due to his contributions to the field, particularly his work on the Ashtadhyayi, a comprehensive treatise on Sanskrit grammar.

Panini's system of Sanskrit grammar is known as the Ashtadhyayi, which consists of eight chapters and covers various aspects of Sanskrit grammar, including phonology, morphology, and syntax.

The Mahabhashya is a commentary on Panini's Ashtadhyayi written by Patanjali. It provides detailed explanations and examples to help understand Panini's grammatical rules.

In Sanskrit, the smallest unit of sound is called a varna. Varnas are classified into vowels and consonants, and they combine to form syllables and words.

Sanskrit nouns have three genders: masculine, feminine, and neuter.

Vibhakti refers to the declension of nouns in Sanskrit. It involves adding suffixes to the noun stem to indicate different cases, numbers, and genders.

Samasa refers to the combination of two or more words into a single compound word in Sanskrit. This process allows for the creation of new words with specific meanings.

Krit refers to the formation of new words from roots or stems in Sanskrit. This process involves adding suffixes to the root or stem to create nouns, adjectives, or verbs.

Taddhita refers to the formation of new words from other words in Sanskrit. This process involves adding suffixes to existing words to create new words with related meanings.

Nirukta refers to the study of the meaning of words in Sanskrit. It involves analyzing the etymology and semantics of words to understand their origins and meanings.

Chandas refers to the study of Sanskrit prosody. It involves analyzing the rhythmic patterns and meters used in Sanskrit poetry and literature.

Jyotisha refers to the study of astronomy and astrology in Sanskrit. It involves observing celestial bodies, calculating their movements, and making predictions based on astrological principles.

The Natya Shastra is an ancient Sanskrit text that deals with the theory of dramaturgy and aesthetics. It is attributed to the sage Bharata Muni and is considered a foundational text in Indian classical dance, drama, and music.

The Arthashastra is an ancient Sanskrit text that deals with statecraft, political science, and economic policy. It is attributed to the scholar Kautilya and is considered a seminal work on these subjects.

The Rigveda is the oldest known collection of hymns in the world. It is part of the Vedas, the sacred texts of Hinduism, and is considered to be a source of ancient Indian religious and philosophical thought.