Foreign investors show interest in IEX and Paytm expects payment aggregator license, according to dealers.Institutional buying in KEI Industries and Polycab, and PVC price cuts impacting Astral, Supreme Industries and Finolex Industries, highlight key dealing room activity.IEX share prices rise due to foreign institutional investor buy flows.Paytm attracts high-net-worth individuals as the company may receive a payment aggregator license.