Consider the following statements regarding INS Mysore and Exercise Samudra Laksamana:

1. INS Mysore is a Delhi-class guided missile destroyer of the Indian Navy.
2. INS Mysore was built by Mazagon Dock Limited and commissioned in 1999.
3. Exercise Samudra Laksamana is a bilateral naval exercise between India and Malaysia.

Which of the statements given above is/are correct?

Consider the following statements regarding Buellia maharajensis and lichens:

1. Buellia maharajensis is a newly discovered saxicolous lichen species from Mathikettan Shola National Park, Kerala.
2. Lichens represent a symbiotic association between a fungus and a photosynthetic organism such as an alga or cyanobacterium.
3. Rhizines constitute the main body of a lichen, while the thallus helps anchor it to the substrate.

Which of the statements given above is/are correct?

Consider the following statements regarding the Digital Bharat Nidhi (DBN):

1. Digital Bharat Nidhi was formerly known as the Universal Service Obligation Fund (USOF).
2. It operates under the Telecommunications Act, 2023 and aims to improve telecom access in underserved areas.
3. Contributions to DBN are directly credited to a separate fund without first passing through the Consolidated Fund of India.

Which of the statements given above is/are correct?

Consider the following statements regarding Bakhira Lake:

1. Bakhira Lake is a perennial oxbow/floodplain wetland formed due to the migration and cut-off of the Rapti River.
2. It was designated as a Ramsar Site in 2022.
3. Its sediments can provide evidence about past climatic and environmental changes.

Which of the statements given above is/are correct?

Consider the following statements regarding the UPI Merchant Discount Rate (MDR):

1. MDR is a fee paid by merchants to banks or payment service providers for processing digital payments.
2. The stated 0.4% MDR applies to eligible UPI transactions above ₹2,000, while transactions up to ₹2,000 are exempt.
3. Person-to-person UPI transactions are subject to the MDR.

Which of the statements given above is/are correct?