Spice Jet Airlines — Class and check-in-baggage

Dear sir/Madam
I want to know regarding check-in-baggage bcz first time i booked my ticket online and when i received my ticket i saw class is not mention in my air ticket as
well as there is also no mention for my check-in-luggage.how much kg i can carried in this ticket bcz i have 18-20 kg luggage in check-in.
My name is - Mohammad Aslam Quli khan my pnr no. is AD4DHX. it is from Delhi to varanasi on dated- 17th march 2017. My mobile no. is [protected].kindly solve my problem about class not mention and check -in baggage how i will carry with me bcz it is not mentioned on my ticket