Lot size/quantity for Futures data

I have a couple of basic questions about the Futures live streaming data:

1. How do we get the lot size for a particular futures instrument say SREINFRA18AUGFUT. Do I need to download the NFO instruments file and lookup in that file? In that case how frequently is this file updated?

2. I am using kite.quote to retrieve real time quotes. For example, the following call
response = kite.quote("NSE", ["NFO:SREINFRA18AUGFUT"])
returns:
{u'NFO:SREINFRA18AUGFUT': {u'average_price': 53.51,
u'buy_quantity': 826000,
u'depth': {u'buy': [{u'orders': 1, u'price': 52.6, u'quantity': 7000},
{u'orders': 1, u'price': 52.55, u'quantity': 7000},
{u'orders': 2, u'price': 52.5, u'quantity': 49000},
{u'orders': 2, u'price': 52.45, u'quantity': 14000},
{u'orders': 2, u'price': 52.4, u'quantity': 14000}],
u'sell': [{u'orders': 1, u'price': 52.7, u'quantity': 21000},
{u'orders': 3, u'price': 52.8, u'quantity': 21000},
{u'orders': 1, u'price': 52.85, u'quantity': 7000},
{u'orders': 2, u'price': 52.9, u'quantity': 14000},
{u'orders': 2, u'price': 52.95, u'quantity': 14000}]},
u'instrument_token': 12270850,
u'last_price': 52.7,
u'last_quantity': 70000,
u'last_trade_time': datetime.datetime(2018, 8, 1, 11, 47, 10),
u'net_change': -1.0999999999999943,
u'ohlc': {u'close': 53.8, u'high': 54.7, u'low': 52.25, u'open': 54.25},
u'oi': 16933000,
u'oi_day_high': 17031000,
u'oi_day_low': 16919000,
u'sell_quantity': 1449000,
u'timestamp': datetime.datetime(2018, 8, 1, 11, 47, 10),
u'volume': 1176000}}

My question is - does the quantity above indicate lots or actual shares traded? Do I need to multiply quantity with lot size to get the #shares?

Thanks,
Amar