The article says it will take about 5 weeks for touchdown. and "Making a soft landing will be the hardest part — an Israeli lander trying to do the same thing crashed on the moon in April."

The lander was supposed to be Russian, but delays from the Russian end forced ISRO to do everything itself. This is completely Indian design.

Where did you read this? It didn't mention this in the linked article.

By technology, if you mean rockets, then yes every country uses rocket technology to escape earth's gravity.