Similarities and difference Hindustani and Carnatic styles of classical music

What are the important similarities and difference between the Hindustani and the Carnatic styles of classical music?
There was only one classical music in India before 13th century, which can be traced to 200BC-400BC from `Natya Shastra' of Bharat Muni.

After that period, classical music has been divided into two distinct styles.

• In North India, Persian and Mughal influence started making its place very strongly with Amir Khusro, Tansen and his contemporary musicians mostly performed in Dhrupad genre and later Khayal singing was popularised by Ladarang-Adarang.

• On the other hand, Carnatic music was evolved mainly by Saint Purandardas, Tyagraja, Muthuswamy, Dikshitar and Shyama Shastri.

Similarities between Hindustani and Carnatic styles of classical music are

• Both the styles give prime importance to melody, unlike Western music where harmony is given much more importance.
• Both have one dominant swara or vadi swar in each Raga.
• Both use Sampoorna Scale (with all 7 notes) to define Janak Thaat (Janya Raga).
• Both use Tanpura with one or two notes to represent pitch and base in Raga rendition.

Some similar Raga with different names are given below:

• Hindustani Carnatic
• Bilawal Dheer Shankarabharnam
• Bhopali Mohanam
• Yaman or Kalyan Mech Kalyani
• Khamaj Harikambhoji
• Bhairav Maya Malay Gaula
• 22
• Bhairavi
• Todi

Both genres have similar musical traditions and musical languages however differ on how to derive the musical elements.

Difference between Hindustani and Carnatic styles of classical music are,

• Both have their rhythms segmented into so called Talas (Talam), but the systems to develop them are different.
• The tradition of Hindustani was a result of a cultural synthesis from Traditional Vedic chants, Persian tradition of Musiqui-e-Assil and pervalent folk tradition, while Carnatic music is mainly through compositions, especially the Kriti of 16th-20th century AD.

Hindustani Music:

• Based on 10 Thaats and 32 Ragang Ragas Based on 72 Melakarta or Janak Raga
• Popular 10-12 Taal (also 10-12 Rare Taal) Popular 35 Taal (108 total)
• Improvisation given more importance

Carnatic Music:

• Khayal, Dhrupad, Tarana, Thumri, Dhamaar divide into parts like-Sthayi, Antara, Snachari and Abhog Vamam, Kriti divided into parts like-Pallavi, Anupallavi and Charnam. 
• Popular in North, Central, West and Eastern Popular in South India (Tamilnadu, Karnataka, India. Also in Pakistan and Bangladesh Andhra Pradesh and Kerala)
• Composition given more importance