Then this question:
and what is connected to pins 2 & 3 ?
If the device generating the interrupt is not giving a sharp enough rise, you could use a pin change interrupt instead.
And maybe comment out ang here :
if (nil == now.hour() && yogesh == now.minute())
{
Serial.println("Motor ON");
digitalWrite(9, HIGH);
// ang = false;
nil = 25;//enter the value which will never occur
yogesh = 61;//value for minnute which will never occur
}
because I guess you are assuming that an interrupt has not worked based indirectly on the value of ang.