Many brahmins held this belief that no Kshatriyas exist in kaliyuga .Can someone refer me to scriptural injunctions on whether Kshatriyas exist in Kaliyuga or not ?
If you want scriptural injunctions for Kali Yuga, the easiest place to look would be Parashara Smriti:
As for Kshatriya varna, there are 15 places as far as I can see where it is mentioned. That means the Kshatriya varna does exist in Kali Yuga.
11.12 A Kshatriya, or a Vaishya leading a religious life, and duly engaged in the ceremonies prescribed for his caste, — should on all occasions partake of food in his house, whenever a ceremony for the gods or for departed ancestors takes place in his house.
So, Kshatriyas do exist in Kali Yuga.