Prime Minister Narendra Modi has expressed grief on the demise of eminent archaeologist B B Lal. In a tweet, Mr. Modi said, B B Lal was an outstanding personality and his contributions to culture and archaeology are unparalleled. The Prime Minister said B B Lal will be remembered as a great intellectual who deepened the connect with India's rich past. He said, his thoughts are with the family and friends of B B Lal. <br />''<br />''<br />