Buzzing stocks: Hero MotoCorp, Tata Steel, Apollo Hospitals, Jindal Steel, Thangamayil, Aadhar Housing, Premier Explosives, NTPC, Hindustan Zinc, Indian Hotels, Infosys,ย  Alkem LaboratoriesOberoi Realty, Adani Energy Solutions, Kalyan Jewellers are likely to enter MSCI Standard Index. Besides, HDFC Bank is likely to see increase in weightage.