Table 1 shows the covariance of returns of various stocks with respect to each other( NIFTY IS MARKET INDEX AND IT'S RETURNS ARE TO BE ASSUMED AS MARKET RETURNS ITSELF)

Table 2 shows the average annual return of various stocks (NIFTY IS MARKET INDEX AND IT RETURNS ARE TO BE ASSUMED AS MARKE RETURNS ITSELF)

What is the  relation between HDFCBANK and TCS?
 

rdr +6 DMART HDFCBANK HINDUNILVR RELIANCE TCS NIFTY 0.0207 0.0138 0.0208 0.0217 0.0154 0.0267 0.0108 0.0140 0.0134 0.0619 0.0167 0.0259 0.0167 0.0455 0.0191 0.0259 0.0191 0.0239 DMART 0.0954 HDFCBANK 0.0190 HINDUNILVR 0.0153 RELIANCE 0.0207 TCS 0.0138 NIFTY 0.0208 0.0190 0.0563 0.0118 0.0217 0.0154 0.0267 0.0153 0.0118 0.0462 0.0108 0.0140 0.0134 ann_ret 0.1439 HDFCBANK 0.0642 HINDUNILVR 0.0439 RELIANCE 0.0979 DMART TCS 0.0367 NIFTY 0.1282