You can check your Train PNR Status easily with the Google Home/Google assistant skill developed by Pragmatic Voice.
You can also check if the seats are confirmed or not, check the seat number and the berth details.
Not just PNR status, but the skill can also tell if you stand a chance of ticket confirmation when you are in the waiting list or in the reservation against cancellation quota.
You have to invoke the PNR skill by saying, "Hey Google, talk to PNR status to check my PNR status" and as the skill greets you, simply say your 10 digit Train PNR number without a pause. The device will fetch the PNR details and reply the status.