In deed the Day of Qiyamah (Doomsday) is imminent: اقتربت الساعۃ (Al-Quran: 1/54). The advent of Hazrat Mahdi, appearance of Dajjal (Antichrist) and second coming of Hazrat Eisa (Alaihis Salam) is undoubtedly true. These things have been mentioned in sahih hadiths. These events will take place at their due time, but they are not too small to remain hidden. These events are amongst the main signs of Qiyamah and they will appear impressively. The one who claims to have met Hazrat Mahdi or Hazrat Eisa is a liar; he even does not know whom he met; Hazrat Mahdi or Hazrat Eisa, whereas there will be no difficulty in recognizing them.
Allah (Subhana Wa Ta’ala) knows Best
Darul Uloom Deoband