Only 2 is correct.
The palace of Chandragupta Maurya was inspired by the Achaemenid palaces at Persepolis in Iran. Wood was the principal building material.
During the time of Ashoka, the inscription of pillars – as a symbol of the state or to commemorate battle victories – assumed a great significance. He also used pillars to propagate imperial sermons as well.
Example: Lauria Nandangarh pillar in Champaran, Sarnath pillar near Varanasi, etc.

1 and 3 are correct.
• Karakattam is an ancient folk dance of Tamil Nadu performed in praise of the rain goddess Mariamman. The ancient Tamil epic says that this type of dance has derived from Bharatham and a mixture of multiple forms of Tamil dance forms.
• Tamang Selo is a genre of Nepali Folk song sung by the Tamang people and widely popular amongst the Nepali speaking community in Nepal, India and around the world. It is usually accompanied by Tamang instruments, the Damphu, Madal and Tungna.
• Koli dance is the folk dance of fisher community of Maharashtra. In this dance, we can see the dance movements of girls are inspired from their daily life of fishing. Sea waves, throwing net in the sea, catching fishes are some of those movements

1, 2 and 3 are correct.
From India the Intangible Cultural Heritages added into this list include:
• Tradition of Vedic chanting
• Ramlila, the traditional performance of the Ramayana
• Kutiyattam, Sanskrit theatre
• Ramman, religious festival and ritual theatre of the Garhwal Himalayas.
• Mudiyettu, ritual theatre and dance drama of Kerala
• Kalbelia folk songs and dances of Rajasthan
• Chhau dance
• Buddhist chanting of Ladakh: recitation of sacred Buddhist texts in the trans-Himalayan Ladakh region, Jammu and Kashmir.
• Sankirtana, ritual singing, drumming and dancing of Manipur
• Traditional brass and copper craft of utensil making among the Thatheras of Jandiala Guru, Punjab
• Yoga
• Nawrouz
• Kumbh Mela

Both 1 and 2 are correct.
The Sangeet Natak Akademi – India’s national academy for music, dance and drama – is the first National Academy of the arts set-up by the Republic of India. It was created by a resolution of the (then) Ministry of Education, Government of India, dated 31 May 1952 notified in the Gazette of India of June 1952. The Akademi became functional the following year, with the appointment of its first Chairman, Dr P.V. Rajamannar, and the formation of its all-India council of representatives, the General Council.
The Sangeet Natak Akademi is presently an Autonomous Body of the Ministry of Culture, Government of India and is fully funded by the Government for implementation of its schemes and programmes.

1 and 3 are correct.
Jamdani is a fine muslin textile produced for centuries in South Rupshi of Narayanganj district in Bangladesh. The historic production of jamdani was patronized by imperial warrants of the Mughal emperors. Under British colonialism, the Bengali jamdani and muslin industries rapidly declined due to colonial import policies favoring industrially manufactured textiles. In more recent years, the production of jamdani has witnessed a revival in Bangladesh. Jamdani is typically woven using a mixture of cotton and gold thread.
In 2013, the traditional art of weaving jamdani was declared a UNESCO Intangible Cultural Heritage of Humanity. In 2016, Bangladesh received geographical indication (GI) status for Jamdani Sari.