During the 16-day period of Shradh, there are several things that are considered inauspicious according to Hindu tradition. Here are some of the things that should be avoided during Pitru Paksha:

• Buying new things: It is believed that buying new things during this period can bring bad luck. This includes new clothes, gold, silver, artificial jewelry, and vehicles.

• Auspicious activities: Avoid any auspicious activities during Shraddh such as marriage, engagements, and housewarming rituals. It is believed that they bring bad luck.

• Non-vegetarian food: It is considered sacred to abstain from consuming non-vegetarian food such as meat, chicken, eggs, and others during Shradh.

• Cutting hair and shaving: Cutting hair or shaving beard should be avoided during these fifteen days of Pitru Paksha.

• Using iron utensils: Iron utensils or any other object made of iron should not be used during Shraddh. Instead, opt for silver, brass, and copper.

• Placing pictures of ancestors: Avoid placing pictures of ancestors in the pooja room, bedroom, or kitchen, as it can cause discord in the family. The pictures should be placed in the Vastu-recommended North direction.

• Raw grains, pulses, or rice: Raw grains, pulses, or rice are strictly forbidden during the Shradh. Therefore, be mindful of preparing meals without these food items.

It is important to note that these are beliefs and traditions, and whether or not to follow them is a personal choice.