How come Tannu has Asad's phone?

am still wondering...According to receptionist Asad left few minutes before and Zoya called him almost immediately...Then how come Asad's mobile is reachable to Tannu? Tannu is in Khan House..so, Asad reached home so quickly????😲

[yahhh i too thut d same way...bt i guess he hadn't taken his phone with him to ajmer!!! 😕😕 foolish asad😛😆