On 3rd March 2020 tickets r available in all HWH & SDAH Rajdhani exp 3A, 12323 HWH-ANVT Exp 2A for HWH-NDLS.... u can book them from Howrah to New Delhi from there you can go to Mathura. You can try these options i think it will take lesser time and safe travel than traveling in UA Toofan Express. Just my suggestion...decision is all yours.
Happy journey