List the name and phone number of customers in India who have an above-average account balance.
name of customer refers to c_name; phone number of customer refers to c_phone; customers in India who have an above-average account balance refer to n_name = 'INDIA' and c_acctbal > AVG(c_acctbal);
SELECT T1.c_name, T1.c_phone FROM customer AS T1 INNER JOIN nation AS T2 ON T1.c_nationkey = T2.n_nationkey WHERE T1.c_acctbal > ( SELECT AVG(c_acctbal) FROM customer ) ORDER BY T1.c_name