The Organization of Turkic States (OTS)
Turkic countries: Azerbaijan, Kazakhstan, Kyrgyzstan, Turkey and Uzbekistan.
Mnemonic- AKTU-K (abdul kalam technical university-k)
A- Azerbaijan
K- Kazakhstan
T- Turkey
U- Uzbekistan
K- Kyrgyzstan

The population census is a Union subject under Article 246 of India Constitution. It is listed at serial number 69 of the seventh schedule of the constitution