जरनैल सिंह भिंडरावाले ने अमृतसर के पास स्थित अपने मुख्यालय मेहता चौक पर किस तारीख को अपनी स्वैच्छिक गिरफ्तारी दी थी?

In which year did the Kukas start the daily publication of the newspaper 'Kuka', as part of their efforts to spread their ideology?

In which year was Khalsa College, an iconic educational institution in Amritsar, established?

In which year was the Punjabi Suba slogan movement launched by the Akali Dal in Punjab?