The Centre's restriction on the open market sale scheme has had a significant impact on the foodgrain buying practices in various states. Some states are exploring alternative ways to procure foodgrains. Here are a few points to elaborate on this:

• The Centre's decision to limit open market sales has affected the foodgrain supplies in the states, leading to price hikes.
• Some states are exploring the option of procuring foodgrains from other states that have surplus production or through imports.
• Additionally, states are also looking to increase the purchase from their own farmers to support them and promote local production of foodgrains.
• Another way states are exploring to buy foodgrains is through online procurement platforms, which provide a transparent bidding system for procurement.
• Some states are also considering setting up new food processing units as an alternative way to ensure a steady supply of foodgrains.
• The Centre's move has challenged states to come up with innovative ways to ensure food security, reduce price hikes, and promote local farmers.

In conclusion, as states strive to ensure adequate food supplies, they must explore various alternatives and implement effective strategies to overcome the restrictions placed by the Centre.